Friday, September 29, 2017

Pear



Pear



Belonging to the member of rose family, pear is a fruit that is juicy and can have a mildly acidic to sweet taste. It typically has a rounded body that tapers into a neck. Pears are available in different forms: fresh, dried, canned or in the form of juice. The fruit is available in variety of colors from green to brown. They are used majorly in desserts and are a good source of dietary fiber and vitamin C.

Pear is often called as pear apple though they slightly differ with each other. The major difference is the shape of pear apple. It is completely round with no neck structure. Pears tend to perish as soon as they turn ripe therefore the ones available in the market are slightly unripe. Leave them at room temperature for them to ripen. If you do not have to consume them once ripe the refrigerate them.

Types and Usage

There are 3000 known varieties of pears but the ones you would commonly come across are-
Anjous that are firm and mild flavoured pears.
Bartletss that are very juicy.
Bosc that are crisp and sweet.
Asian pears that have a very mild flavor.
Comice pears that are less grainy.
French butter pears.
Seekel pears that are mostly eaten raw when completely ripe.

Pears are consumed raw, canned in the form of a fruit or juice. Pear juice is also used in making jellies and jams. They are also used in desserts, pies and puddings. Pears are great for salads too.

Nutritional Value

The dietary fiber content reduces the risk of cancers. Pears also contain antioxidant properties that help control blood pressure. The high folate content is good for women during pregnancy. Compared to other fruits, pears have lesser allergic chances on humans. The skin of the fruit contains fiber that cures constipation.

Did you know?

Pears are given the nickname "butter fruit" for their soft, buttery texture
The Chinese considered pear as a sign of immortality.

Currant




Currant



A member of the grape family, currant is a dry, dark-red and seedless raisin. Often considered along with gooseberry, currants are commonly used for making food preservatives, liqueurs and syrups. Currants are usually not eaten raw for their tarty taste.

Types

There are a wide variety of currants differing in texture, color and fruit flavor. Very commonly used varieties are blackcurrant, redcurrant and whitecurrant.
Blackcurrant can be eaten raw but it carries a very strong tarty flavor. The fruit has to be blended with sweetening agents to be toothsome. For regular culinary use, the fruit is steamed with sugar to produce a puree, which is used as an ingredient in cheesecakes, yogurt, ice creams, desserts and several sweet dishes.

Red currant variety range in varied shades - from dark red to pink, yellow or white. Their sweetness increases as the color of the fruit intensifies. It is often served raw or as a simple add-on with salads or drinks. In United Kingdom, redcurrant jelly is served along with lamb on Sunday toast.

Unlike the black and red currants, white currant is usually cultivated for their ornamental value. This variety of currants is relatively sweeter. When prepared into jams and jellies, it yields a pink color.

Nutritional value

1. White currants are good source of Vitamins B1 and C1. They also have rich amounts of iron, manganese and copper.

2. Blackcurrants are low-fat and high-protein berries.

3. Blackcurrants contain glucose that provides necessary energy required to the body.

Did you know?

For their tarty taste, black currants were once looked upon as inferior berries.

Between the period of 1600s and 1700s, American colonists began cultivating currants and imported to Europe.



Peach



Peach

Peach is a type of fruit that comes from the deciduous peach tree native to China and South Asia. Peaches are seen with high regard in Chinese culture. In many other cultures, peaches have got historical significance. The fruit is in the size of a small apple. It is usually yellow or whitish in color and has a velvety or a very smooth texture with a juicy pulp. Peach is also available in red and pink colors. It has a single seed and is oval shaped about 1.3-2cm long. China is the world's largest producer of peaches.

The peach tree bears many fruits during the months of May and September. Depending on what strength the seed is attached to the pulp, the fruit is categorised as free-stone variety or clinging seed variety.

Usage

It is a member of the rose family, closely related to cherries, plums and apricots.

The most commonly found peach varieties are:

Yellow flesh peaches: This variety is commonly found in the U.S. These yellow-fleshed fruits are more acidic than white fleshed ones.

White flesh peaches: Commonly found in the Asia region, these peaches are sweet and less tangy. They also have a smoother texture.

Clingstone peaches: The softer juicer peaches are mostly used for canning and preserving purposes. It is essentially used for baking.

Nutritional Value

Peaches are low in saturated fats and cholesterol. They are a good source of vitamin A and B-carotene which helps to convert vitamin A in the body. Peaches also have a high content of potassium, iron and fluoride.

Did You Know?

Peaches reduces hair fall and is a great moisturizer and is often used in cosmetics.
It is known as the 'Fruit of Calmness' in Hungary as it helps to reduce anxiety.
This fruit is a symbol of good luck in China.

3 food mistakes we must avoid




3 food mistakes we must avoid




Many are seen eating sugar items whole-heartedly when something goes wrong. It is one of the biggest food mistakes to be avoided if you wish to have healthy skin.

Huffingtonpost.com shares some food mistakes:

- Eating too much sugar-based food items: A bad day for most of us means consuming ice cream or something sweet. But this choice might just make your bad day even worse, if you take note of what's happening to your skin. Foods with added sugars increase your blood sugar and cause chronic inflammation in the body, which damages your collagen.

- Eating excess of starchy foods: Starches like white bread, pasta and white rice cause rapid spikes in blood sugar, which leads to inflammation in the body. This process produces enzymes that break down collagen and elastin, giving you sagging skin and wrinkles.

- Forgetting to count beverages: Just like in food, sugar found in liquids can contribute to premature ageing, acne and other inflammatory skin conditions, especially since sugar in beverages like juice and soda are absorbed into the bloodstream very quickly.
Category: Health


Always I wanted to avoid these thing. It will help me to get a healthy life..





Obesity in Pregnancy Puts Child at Diabetes Risk








Obesity in Pregnancy Puts Child at Diabetes Risk




According to Swedish researchers, women who are obese while pregnant may put their offspring at risk of childhood diabetes.

A study of more than 1.2 million children born in Sweden between 1992 and 2004 and monitored for several years, found a 33-percent higher risk for the disease among children whose mothers were obese during the first trimester of pregnancy, but were not diabetic themselves.

"Maternal overweight and obesity in early pregnancy were associated with increased risk of type 1 diabetes in the offspring of parents without diabetes," a team wrote in Diabetologia, the journal of the European Association for the Study of Diabetes.

The highest risk was still for children of parents who had diabetes themselves, the study found. There was no additional risk for children of mothers who were obese on top of having diabetes.
Over 5,700 children from the study group were diagnosed with type 1 diabetes by 2009.

Type 1 diabetes is usually found in children and young people -- a chronic condition caused when the pancreas does not produce insulin to control blood sugar levels. It requires lifelong insulin treatment, and constitutes about 10 percent of all diabetes cases -- though the number is growing. And the increase "may partly be explained by increasing prevalence of maternal overweight/obesity," said the study.

People with a BMI (body weight index, a ratio of weight to height) of 25 and higher are classified overweight, and 30 and over obese. Obesity, too, is soaring, having more than doubled worldwide since 1980. By 2014, more than 1.9 billion adults were overweight, of whom 600 million were obese, according to the World Health Organization.

Type 2 diabetes is much more common than type 1, and is believed to be caused by lifestyle factors, and controlled through healthy diet, exercise and medication. "Prevention of overweight and obesity in women of reproductive age may contribute to a decreased incidence of type 1 diabetes," the study concluded.

5 Health and Fitness Tips for Bride

5 Health and Fitness Tips for Bride




It is a dream of every girl to look like a princess on her wedding day. However, the majority of them confuses the thin body and bleached skin with beauty. Crash dieting and extensive cosmetic treatment may sometimes make them look exhausted and undernourished. Here are few tips which every bride must try to look her best on the D-day.

Diet :
Crash dieting and fasting can never allow you to look attractive. It is always advisable to lose weight by reducing calorie and fat intake and follow a proper exercise routine. The bride-to-be must start her low-calorie and low-fat diet plan at least 3 months before the wedding. The bride must never ignore the importance of healthy diet and most importantly the breakfast. Never skip meals rather opt for smaller portion size and drink at least 6-7 glasses of water every day.

Exercise :
Aerobic exercise like walking, running, swimming and cycling helps a lot in rapid weight loss. On the other hand, weight training helps to tone up specific areas of your body and make you look curvy.

Skin :
Skin needs special attention as they enhance your natural beauty. But, extensive cosmetic treatment of skin like bleaching, tan-removing, frequent facials, vigorous scrubbing, and more can leave your skin look dull and dry. It is advisable to keep your skin nourished using a good quality moisturiser, avoid prolong exposure to sunlight, wear sunscreen while out, do clean ups every week or ten days and get an herbal or fruit facial only once a month.

Hair :
Brides must avoid frequent hair treatments like ironing, perming, and straightening. If straightening or perming is required, it should be done only a week before the wedding. The bride must regularly oil her hair preferably with almond oil and use mild shampoos.

Sexual health :
this is point is often ignored from the fitness regime of the bride. It is very much advisable for a bride to consult a gynecologist with her partner to understand the nitty-gritty of physical relationships and most importantly contraceptive methods. Knowledge about contraception can avoid unnecessary abortions and after pills intake which can be very derogatory for the general health of the women on long terms.

Health benefits Grapefruit




Grapefruit

It is the fruit of a sub-tropical citrus tree. It is said to have originated in Barbados as a hybrid of the Jamaican sweet orange and the Indonesian pomelo. There are many stories associated with its origin that made people call it "The Forbidden Fruit". USA is the top producer of grapefruit and in recent years its cultivation has also started in India. Commonly known as Chakotra in Hindi, the fruit has a sour to semi-bitter taste.

Types

Red grapefruit are said to be a little sweeter as compared to the rest.
Oro Banco is a cross between pomelo and white grapefruit.
Pink grapefruits are the most commonly used type for making grapefruit juice.
White grapefruit is the least sweet of them all and does not have lycopene.
Pomelo are lime green or yellow in color and are mostly used in salads.

Health benefits

Grapefruit has 73% daily value of vitamin C and is therefore one of the best fruits for a healthy immune system. Including grapefruit in the diet can keep you away from cold.

It also helps reduce the severity of inflammatory conditions like asthma and arthritis.

Pink and red grapefruits contain lycopene that are known for their anti tumor activity. Drinking it in the form of juice can help prevent prostrate cancer.

Grapefruit juice is known for its highest antioxidant activity.

The presence of a soluble fiber pectin makes it very helpful in reducing cholestrol levels.

Drinking grapefruit juice prevents the formation of calcium oxalate stones and helps prevent kidney stones.

It also lowers insulin level and helps prevent weight gain.

Health Benefits Lemon Rind




Lemon Rind

Lemon rind is basically the peel of the lemon. The outer yellow part of the rind is used a lot for flavouring of cakes, tarts, salads. It is usually grated to add flavour to the food. The rind is also called the lemon zest if grated. It can also be used to deodorize garbage disposal and for cleaning microwaves and refrigerators.

Health Benefits

Lemon rind has a high nutritional value as it helps to reduce cholesterol levels and thus protects our heart. It balances the blood pressure and also helps to fight cancer. It makes our bones stronger and provides minerals like calcium and potassium.

It improves the immunity of our body and helps in better digestion. Lemon rind contains nutrients that help to cure certain brain disorders like Parkinson's disease.


Add lemon juice instead of milk in tea. it is a quick remedy to reduce belly fat.

Tuesday, September 26, 2017

Wonder Berries and Their Health Benefits

None of us are oblivious to the fact that berries have gained the reputation of a wonderful superfood in the last few years. Numerous scientific studies have regarded berries as extremely healthy and indicate that they should be a part of your daily diet owing to their high antioxidant levels. The antioxidants and polyphenols, that also impart the dark purple or crimson colour to these berries, make them good for your heart, brain and even your skin. Not just that, these bright and sweet superfruits are a delicious addition to your breakfast bowl or your evening salad. If you walk around the supermarket fruit aisle, you will find several varieties of imported berries like the cranberries, goji berries or the blueberries that have had everyone talking. But we'd like to introduce and turn the spotlight on our very own native Indian berries that deserve as much attention and are probably healthier as they are locally cultivated and are not packaged and flown in from thousand miles away. 

Here are nine wonder berries of India and we'll help you know them a little better:

1. Mulberry (Shahtoot)

Succulent, refreshing, tart and sweet mulberries or shahtoot are seasonal beauties. Mulberries are the fruits from the Morus Alba trees that grow in warmer regions. The primary grower of the berry is Karnataka. According to the book Healing Foods by DK Publishing, "Mulberries are an ancient fruit with a long tradition of use as a medicine, including as a tonic for the whole body. They protect against eye damage and act as a sedative." Mulberry is a powerhouse of nutrients and is a great source of protein, iron, calcium, niacin, fiber, and vitamin A, C, E and K. Mulberries are known as blood cleansers as they improve the blood circulation in your body. 

2. Grape (Angoor)

Did you know that grapes are also berries? India has diverse grape growing regions, Maharashtra being on the top. There are over 20 varieties of grapes that are grown in our country with the Thompson seedless being the most popular of them all. Grapes are high in fiber, B1, B2, B6, vitamin K and Potassium. Grapes can cure constipation as they contain sugar, organic acid and polyose that together provide laxative properties.

3. Gooseberry (Amla)

Gooseberry or amla is a berry with a sour taste. India's subtropical region is home to amla. It is an excellent source of vitamin C and antioxidants. This translucent green berry is known for its various health benefits. It helps fight common cold and infections due the presence of vitamin C while various antibacterial and astringent properties help stimulate the immune system of the body. Amla is high in fiber that adds bulk to the stool and helps food move forward and thus, keeping your bowel movements smooth and regulated and your stomach clean. 

4. Cape gooseberry (Rasbhari)

Cape gooseberries are one of the easiest berries to grow as they can adapt to numerous climates and elevations. These golden orange berries are sour and sometimes bitter and have a smooth glossy exterior. Cape berries have high amounts of vitamin A that protects the eye and strengthens the vision. They have soluble pectin fiber that helps prevent constipation and lowers bad cholesterol. 

5. Blackberry (Jamun)

Jamun or Indian blackberry is known to be one of the best berries in India. An Indian native, jamun is a beautiful tropical tree that lives up to more than a hundred years. According Macrobiotic Nutritionist Shilpa Arora, "Jamuns are deep purple in color majorly because they are small in size and all the color is concentrated at one place." The commonly found purple fleshed jamuns taste both sweet and sour and are savored with a dash of salt sprinkled on them. The dark colour basically comes from the presence of anthocyanins. These antioxidants fight free radicals in the body and protect you against many ailments including hypertension, diabetes and even cancer. Jamun is extremely beneficial for diabetics. It helps to convert starch into energy and keep your blood sugar levels in check. 

6. Strawberry
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The beautiful hills of Nainital, Dehradun and Mahabaleshwar are covered with strawberry plantations.  About 20 varieties of strawberries are grown in the country. It is a rich source of vitamin C, manganese, folate, potassium and flavonoids. Their seeds on the exterior surface also have small amounts of omega-3 fatty acids. Antioxidants like flavonoids and elagic acid can help avoid cataract, vision defects and susceptibility to eye infections. The presence of vitamin C in strawberries helps in boosting your immunity. Strawberries are also often used to whiten your teeth. The acids present in the berry help remove the stains from your teeth. 

7. Kanta Berry (Kanntam)

This rare berry which is also known as kanntam originates from the Konkan region. Kanta berry is a tiny purple colored fruit and has a white sticky substance on the skin. "It is also found in yellow color and are generally eaten raw as a fruit and not cooked. It has a pungent taste, a lot similar to amla," shares Health Expert Shilpa Arora.

8.  Zara Berry


Zara berry is primarily grown in Goa and is sold in the local markets. It is a blackish-purple fruit with green seeds inside. The fruit is sweet tasting. The inner green seeds are known to be eaten as a delicacy in Goa. According to Nutritionist Shilpa Arora, the health benefits of zara berries may be similar to that of jamuns because of the dark purple color that they have and the presence of antioxidants. The flavonoids help control diabetes, blood pressure and keep your cholesterol levels in check. 

Monday, September 25, 2017

Prospects for Increasing Commercial Mushroom Production

Abstract
One of the benefits of mushroom cultivation is their potential contribution to a more sustainable and environmentally-friendly
way of farming. Mushroom cultivation using an agricultural waste as a growing medium, and the subsequent use of spent
substrate has high value for horticultural activity; organic fertilizer; and potential utilise for animal feeding. The value of
mushroom to diets, coupled with reported medicinal properties, can also provide valuable additional new small and mediumscale
business options. This study attempts to evaluate the mushroom industry prospects in Malaysia. It also explores issues
and challenges facing the mushroom industry in Malaysia by using a critical analysis and SWOT analysis. The main challenges
include poor supply and the increasing price of raw material, for example sawdust; the poor quality of mushroom spawn, and
the threat of diseases and pest attack. Several strategies are discussed to potentially improve the productivity of mushroom
cultivation in Malaysia.
Keywords: agricultural residues, environmentally-friendly, Malaysia, small and medium enterprise, spent mushroom substrate
1. Introduction
The desire for greater sustainability; improving food security by increasing diversity; and developing more reliable sources
of income especially for small-scale farmers, suggests mushroom farming may be one of the viable options. It provides
an efficient and economically-viable biotechnology (Bradley, 2013), which can give consistent growth with high biological
efficiency (Jonathan et al., 2012). Mushrooms are suitable for fresh consumption, pharmaceutical-use and cosmetic
production (Ministry of Agriculture Malaysia, 2011; Mohd Tarmizi, 2013). Edible mushrooms are highly tradable
commodity, and their cultivation is becoming increasingly successful in many regions because of prevailing external
climatic conditions; short growing times; very low inputs requirements for production, and easy production technologies.
Other attractions include where land is also a limiting factor, low investment needed, and where agricultural residues are
abundantly available (Marshall & Tan, 2009; Bradley, 2013).
Asian countries produce more than 74.64% of world mushroom markets followed by Europe (19.63%) respectively
in 2014 (FAO, 2015) (Figure 1). In recent years, about 40% of total world mushroom are exported from China as the
world’s biggest producer of mushroom. However, 95% of the total China production is for domestic consumption (Zhang
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et al., 2014). In 2013, Shiitake had the best demand for mushroom consumption in China about 22.5%, followed by Grey
ear mushroom 18.9% and Wood ear mushroom 16.8% (Li & Hu, 2014). With the largest markets, mushrooms widely
cultivated only by small-scale farmers (Li & Hu, 2014).
Source: Food and Agriculture Organization, 2015
Roughly about 300 mushrooms are edible, but only 30 have been domesticated and 10 are grown commercially globally.
The best-known specialty mushroom and easiest to market is Oyster mushrooms and Shiitake (Barney, n.d). Different
mushrooms lend themselves to different growing systems. The most important condition for mushrooms fruiting is for the
growing environment to be carefully controlled with temperature, humidity, light and sometimes atmospheric gases
(Thiribhuvanamala et al., 2012, Foley & Yakushenko, n.d). Since mushrooms contain about 90% of water, it is also
desirable to grow them under a relative humidity above 85-90% (Upadhyay, 2011).
For enhancing yield, appropriate bed methods; quality of spawn; suitable substrate, and a favourable season for
cultivation are particularly important (Thiribhuvanamala et al., 2012, Foley & Yakushenko, n.d). Spawn culture is highly
technical and requires specialized facilities and equipment (Barney, n.d). Mushrooms require also careful harvesting,
attractive packaging, refrigerated storage and efficient transportation (Foley & Yakushenko, n.d).
Typical substrates which could be used including sawdust, straw of any grain crops (wheat, rice, barley and rye)
(Foley & Yakushenko, n.d), logs, corn cobs, bagasse, chaff (Barney, n.d; Mamiro & Mamiro, 2011), water lily, banana
leaves, cocoa bean shell, cotton straw and other agricultural by-products (Marshall & Nair, 2009; Thiribhuvanamala et
al., 2012). However, commercial mushrooms production can also require high levels of management input and skill. Each
species requires specialized treatment to produce a consistent yield of uniform high-quality and marketable product.
This study attempts to evaluate the mushroom industry prospects in Malaysia. It also explores issues and
challenges facing the mushroom industry in Malaysia. The contribution reviews the challenges and opportunities for
further developing mushroom farming in Malaysia. It also suggests more reliable ways for taking successful mushroom
business enterprises forward in Malaysia.
2. Methodology
This paper is more a review and synthesis. The data are acquired from secondary sources. A critical analysis and SWOT
analysis was carried out to evaluate the mushroom industry prospects in Malaysia. The analysis based on current
performance such as the role and contributions of the entrepreneur; total of mushroom production currently; the growth of
mushroom exports and imports; and the challenges and opportunities facing growers.
SWOT analysis consists of four quadrants. Internal survey was used to highlight the strength and weakness.
Meanwhile, the external survey was used to look at the opportunities and threats faced by mushrooms industry in
Malaysia.
3. The Value and Potential of a Mushroom Industry
3.1 Integrated Zero Waste Farming
In many countries, there are often large amounts of agricultural by-products with increasing agricultural production and
greater demand for more food security. These were sometimes, previously, considered to be largely unusable. The
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Mediterranean Journal of Social Sciences
MCSER Publishing, Rome-Italy
Vol 7 No 1 S1
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greatest challenges are also to dispose of these wastes with minimal impact on the environment. Recently, dumping in
landfill and field burning openly were used to dispose of straw which contribute to serious environmental degradation
such as global warming; destroying untargeted flora and fauna (Mamiro & Mamiro, 2011), and adversely affecting public
health (Mantanis et al., 2000; Zhang & Jenkins, 2004; Das & Mukherjee, 2007; Yang et al., 2013; http://business
casestudies.co.uk).
Crop residues such as grain crop straw are characterised by the predominance of lignocellulose with cellulose,
hemicellulose and lignin as the main components (Yildiz et al., 2002; Das & Mukherjee, 2007; Mamiro & Mamiro, 2011;
Jonathan et al., 2012). Using such crop residue as a mushroom substrate would subsequently convert them into a more
protein-rich biomass and influence the mushroom yields (Mamiro & Mamiro, 2011). The high potential of such substrates
for growing mushroom could be economically attractive and profitable for farmers and agriculture more widely. Besides, it
is converting farm waste into useful products which could later help maintain the nutrient requirement of crops, soil
physical and chemical condition, and also balance the ecological demands on the crop production system (Naresh,
2013).
In Tanzania, locally crop residues such as rice straw, banana leaves and juice pulp, bean trash, maize stover and
peels, cotton seed oil waste and sawdust are used in considerable quantities for mushroom substrate (Mamiro & Mamiro,
2011). Prices of such crop residues depends on area, season, type of substrate, and transport. Most are currently
available for free (Mamiro & Mamiro, 2011). While, in Hebei Province, China, the crop residues were used as mushrooms
substrate through a development and utilization of a new culture medium for edible mushrooms research project. Results
show that the quality and quantity of production were slightly increased and 15-20% of cost production was lowered. The
utilization of straw rose from 2.5% to 10% after 3 years in these studies (Zheng et al., 2002).
About 5 kg of spent mushroom substrate will produce from 1 kg of mushroom’s production. Spent mushrooms
substrate is a valuable by-product. It contains of nitrogen, phosphorous and potassium (NPK) as major value to
agricultural sector for soil fertility as an organic fertilizer (Food and Fertilizer Technology Center, 2002; Yildiz et al., 2002;
Zheng et al., 2002; Taiwan Agricultural Research Institute, 2012). Spent mushroom substrate also, could be used as a
growing substrate for horticultural activities (Ahlawat & Tewari, 2007; Marshall & Nair, 2009; Zhang et al., 2014). For
example, the spent substrate of king oyster mushrooms still contains relatively high concentrations of nutrients. It has a
high potential to be reused for commercial cultivation of mushrooms such as oyster mushrooms and shiitake (Taiwan
Agricultural Research Institute, 2012). The result of mushroom crop yield increased by up to 20%, with one-third of the
spent king oyster mushrooms substrate for growing shiitake than those grown without the spent substrate (Taiwan
Agricultural Research Institute, 2012).
Some research reported that the fermented spent substrate had potential sources such as crude protein, nitrogen,
magnesium, calcium, iron, vitamins and polysaccharides (Zhang et al., 1995; Zhu et al., 2012) (Table 1). These are
granted as valuable for poultry and animal feeding (Zhang et al., 1995; Yildiz et al., 2002; Zhu et al., 2012). The other
elements are magnesium, calcium, manganese, copper, zinc, and boron (Yildiz et al., 2002; Agriculture and Food
Development Authority, 2013). It is also reportedly rich in the lignocellulosic enzymes such as laccase, xylanase, lignin
peroxidase, cellulose and hemicellulose, which would be very useful in many biotechnological and environmental
applications (Phan & Sabaratnam, 2012; Agriculture and Food Development Authority, 2013).
Table 1. Proximate composition of Button Mushroom and Paddy Straw Mushroom
Nutrient Content (quantity/ 100g fresh mushroom)
Button Mushroom (Agaricus bisporus) Paddy Straw Mushroom (Volvariella volvacea)
Protein (g) 3.30 3.90
Fat (g) 0.30 0.25
Fibre (g) 1.50 1.87
Iron 0.27mg 1.70g
Thiamin (mg) 0.025 0.14
Phosphorus 1.0mg 0.10g
Source (Roupas et al., 2014) (Ahlawat & Tewari, 2007)
3.2 Contributions to Livelihoods
Mushroom cultivation could directly enhance livelihoods through economic, nutritional and medicinal contributions
(Marshall& Nair, 2009). The impacts of the mushroom business on livelihoods and poverty reduction are wide-spread.
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Mediterranean Journal of Social Sciences
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Since mushroom cultivation does not require a lot of land and the business scale depends on modest to low capital
investment and labour-use, it can become a viable and attractive activity for side-income and a part-time enterprise for
rural farmers and peri-urban dwellers (Zhang et al., 2014). As a more labour-intensive industry, especially in filling
substrate into plastic bags and harvesting, women and elders are reportedly suitable labour (Marshall & Nair, 2009;
Zhang et al., 2014). This can enhance their empowerment to gain other farming skills; greater financial independence and
also self-respect (Zhang et al., 2014).
In several Asian countries such as China and Vietnam, mushroom farming is closely integrated into rice farming.
After harvesting, rice straw is used as a substrate for growing straw mushroom (Marshall & Nair, 2009). In China, contract
farming has been emerging on a large-scale. Farmers are provided with substrate’s bags and the products are collected
by the integrated enterprise (Zhang et al., 2014). The government has strongly encouraged and financially supported
because of the advantages to mushroom quality and greater food safety assurance. The Chinese government also
reportedly considers it easier to control larger and fewer enterprises than numerous small-scale farmers (Zhang et al.,
2014). It does, in addition, provide additional income to people living in the rural areas particularly those working in the
agriculture sector (Yildiz et al., 2002).
3.3 Medicinal Value
Mushrooms have been appreciated for their high quality protein; excellent unsaturated fatty acids, and high content of
available vitamins (Marshall & Nair, 2009; Amuneke et al., 2011; Bashir, 2014; Kumar, 2014; Valverde, 2015). Many
mushroom can contain about 19-40% protein (dry weight) providing twice as much protein as vegetables and four times
that of oranges, and can be a possible alternative to meat (Amuneke et al., 2011; Jonathan et al., 2012; Alexander,
2013; Bashir et al., 2014). About 6% of edible mushrooms are known have medicinal properties and widely cultivated
such as Ganoderma, Shiitake and Straw Mushroom (Volvariella Volvaceae) (Marshall& Nair, 2009)
With high nutrients and compounds, mushrooms could be an excellent source to help counter and heal diseases
(Chang & Miles, 2004; Shirur, 2011; Valverde et al., 2015). Mushrooms had important sources of bioactive compounds
and metabolites (Agriculture and Food Development Authority, 2013; Valverde et al., 2015) that have been considered as
anti-bacterial, have cholesterol-lowering effects (Rajapakse, 2011; Agriculture and Food Development Authority, 2013;
Valverde et al., 2015); some anti-obesity, and anti-diabetic properties (Zheng et al., 2002; Agriculture and Food
Development Authority, 2013); possible immune system enhancer; reported anti-tumor activity; and may be some anti-
HIV effects (Shirur, 2011; Zhang et al., 2014). As a result, mushrooms extracts are sometimes used as prevention or in
the treatment of Parkinson, Alzheimer, hypertension, strokes (Valverde, 2015) and also reportedly reduce the risk of heart
diseases (Barney, n.d).
3.4 Mushrooms Value-Added Products
Mushrooms have a unique flavour with great nutritional value, and are considered by many as an ingredient of gourmet
cuisine (Valverde et al., 2015). Fresh mushrooms should be consumed within two to four days of harvesting (Marshall &
Nair, 2009; Kumar et al., 2014). Processing into profitable value-added products is an option to reduce the losses due to
quality deterioration as well as gaining income and boosting consumption of mushrooms (Kumar et al., 2014). Trending
mushrooms products available on markets are snacks, fried mushrooms, burger, pastry, nuggets, popcorn, pickles,
biscuit, ketch-up, soup powder and candy (Kumar et al., 2014). For Malay cuisine, it can include floss (serunding), in
curry meals and used also as satay (Mohd Tarmizi et al., 2013).
3.5 Mushrooms Farming Scenario in Malaysia
The major agricultural crops grown in Malaysia are rubber (39.67%), palm oil (34.56%), cocoa (6.75%), rice (12.68%) and
coconut (6.34%) (Salman, 2015). Malaysia generates large amounts of agricultural residues, but, these are not often
being currently utilizing for any further downstream operations (Salman, 2015). About 27.0% of agricultural wastes in
Malaysia are used either as fuel in timber industry and manufacturing industries. The rest has to be disposed of by
burning (Salman, 2015). However, around 1.0% of rice straw has diverse various uses including animal feed, compost,
paper products and mushroom growth medium (MADA, 2014; Rosmiza et al., 2014).
Currently, sawdust from local rubber sawmills is used as a substrate for mushroom cultivation in Malaysia. As the
proposed third engine of economic growth in Malaysia, 'New Agriculture' should be extended to analyse all of the
potential of agriculture by-products. Through appropriate biotechnology, these waste materials can potentially be used as
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a growing medium for mushroom (Beetz & Kustudia, 2004) (Table 2). This is in accordance with government policy to
encourage agricultural activities in an eco-friendly and commercially-viable manner (Beetz & Kustudia, 2004).
Table 2. Agriculture residues as a mushroom growing medium
Growing medium Mushroom variety
Rice straw Paddy straw (Volvariella volvaceae), Oyster (Pleurotus ostreatus), Button (Agaricus bisporus)
Sawdust-straw Oyster, Roundhead
Sawdust-rice bran Ear (Auricularia auricula-judae), Shaggy mane (Coprinus sp.), Shiitake (Lentinus endodes), Nameko
(Pholiota nameko), Enoki (Flammulina velutipes)
Oil palm Paddy straw
Cocoa shell Oyster
Banana leaves Paddy Straw
Coffee pulp Oyster, Shiitake
Source: Beetz & Kustudia, 2004.
Mushrooms are reported to be one of the seven high-value crops that are cultivated intensively in Malaysia
(http://www.moa.gov.my, 2011). It is considered, by some, to be a new and small industry but is reportedly steadily
growing (Mohd Tarmizi, 2013; Mohd Zaffrie, 2014). About 17 main types have been commercially cultivated in Malaysia,
but only eight are now cultivated commercially (Ministry of Agriculture Malaysia, 2011) (Table 3). The most popular
cultivated and marketed for household consumption is Grey oyster, while Shiitake and button mushroom are grown for
the hotel trade and caterers (Mohd Tarmizi et al., 2013).
Table 3. Cultivated mushrooms in Malaysia, 2014
Mushrooms type Total cultivated (%)
Grey oyster (Pleurotus pulmonarius) 90.89%
Ling Zhi (Ganoderma sp.) 1.64%
King oyster (Pleurotus eryngii) 1.17%
Black Jelly (Auricularia sp.) 1.17%
Enoki/ Golden needle (Flammulina velutipes) 0.70%
White oyster (Pleurotus florida) 0.70%
Button (Agaricus sp.) 0.70%
Shiitake (Lentinus endodes) 0.70%
Paddy straw (Volvariella volvaceae) 0.47%
Abalon (Pleurotus cystidiosus) 0.23%
Chestnut (Agrocybe sp.) 0.23%
Red oyster (Pleurotus flabellatus) 0.23%
Yellow oyster (Pleurotus citronipileatus) 0.23%
Fungus (Schizophyllum sp.) 0.23%
Shaggy mane (Coprinus sp.) 0.23%
Monkey head (Hericium erinaceum) 0.23%
Morning glory (Citocybe sp.) 0.23%
Source: Department of Agriculture Malaysia, 2015
The total value of mushroom production grew from RM49.1 million in 2007 to RM79.0 million in 2011. The production
value had further increased to more than RM110 million in 2014 (Figure 2). The tremendous increased of production
value was contributed by the increasing number of growers, land area and productivity (Department of Agriculture
Malaysia, 2015). Thus, the consumption of mushrooms has increased at a relatively rate from 1.0 kg/ person in 2008 to
2.4 kg/ person in 2020 (Ministry of Agriculture, 2011). This increment being partly due to an increase of population and a
reported higher concerns towards health (Mohd Zaffrie, 2014).
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Figure 2. The total value of mushroom production in Malaysia (2007-2014)
Source: Department of Agriculture Malaysia, 2015
The main export destination for mushroom grown in Malaysia is the United States, Brazil and Singapore until 2009, but
much now goes to Singapore, Thailand, Hong Kong, Taiwan and other countries (Department of Agriculture Malaysia,
2015). The largest exported mushroom is Button mushroom (49%) as fresh and chilled. The rest about 51% exported as
processed such as Ling Zhi, Black Jelly and Paddy Straw mushroom. Mushroom export has increased from about 19% a
year from RM12 million in 2000 to RM67 million in 2010. The exports slightly dropped from 8302.96 metric tonnes in 2008
to 3190.26 metric tonnes in 2013 (Department of Agriculture Malaysia, 2015).
However, imports have increase from more than 21 thousand tonnes in 2004 to 24.5 thousand tonnes in 2013
(Figure 3). The main exporter to Malaysia being China, Thailand, Hong Kong and Taiwan (Department of Agriculture
Malaysia, 2015). The main supplier of fresh and dried mushrooms is China at about 2.71 million tonnes of fresh
mushrooms and 3.11 million tonnes of dried mushrooms (Mohd Zaffrie, 2014).
Figure 3. Import and export quantity (metric tonnes) of mushrooms industry in Malaysia (2004-2013)
Source: Department of Agriculture Malaysia, 2015
The numbers of mushroom growers in different States of Malaysia fluctuate, because of unstable production and market
changes. However, the total number of growers in Malaysia has reportedly increased every year (Department of
Agriculture Malaysia, 2015). Most of them (about 80%) are small growers and produce below 50 kg per hectare of fresh
mushrooms a day. The medium scale (produce 50-500 kg per day) growers constitute 17% and big scale industries
(producing more than 500kg per day) are around 3% only (Mohd Tarmizi, 2013). Johor, Selangor and Pahang states are
leading in mushroom producers, probably because of the higher demand especially from Chinese Malaysian population
(Table 4).
Table 4. Mushrooms growers by state (2007-2014)
State Total of entrepreneurs
2007 2008 2009 2010 2011 2012 2013 2014
Perlis 4 4 5 4 5 4 4 5
Kedah 9 9 11 15 14 9 20 26
P. Pinang 13 13 15 17 16 13 21 24
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Perak 30 31 36 38 40 30 35 40
N. Sembilan 30 36 35 25 24 30 27 24
Melaka 16 16 14 14 13 16 14 13
Johor 67 87 80 88 90 67 84 91
Pahang 50 45 50 50 47 50 50 46
Terengganu 29 29 29 28 27 29 29 35
Kelantan 22 28 35 40 41 22 38 42
Selangor 50 50 48 55 59 48 57 60
Sabah 13 14 14 13 15 15 15 15
Sarawak 6 13 6 8 7 11 8 7
Total 339 375 378 395 398 344 402 428
Source: Department of Agriculture Malaysia, 2015
4. SWOT Analysis of Challenges Facing Mushrooms Industry in Malaysia
A SWOT analysis was conducted based on the review. There are six strengths that need to be highlighted, with
consideration of five significant opportunities for greater benefit. Whereas, nine scores of weaknesses and four scores of
threats must also be fully addressed (Table 5).
Table 5. SWOT analysis on mushroom industry in Malaysia
Strengths Weaknesses
􀂙 Crop residues such as rice straw (rice as a staple food crop); palm oil
waste (palm oil as a major industrial crop); coffee pulp, cocoa shell,
banana leaves, logs and other materials are easily, abundantly, and
cheaply available for mushroom substrates.
􀂙 Crop residue contains several nutrients that can be very useful as a
growth medium for mushrooms.
􀂙 Mushroom provides high added-value products opportunities possible for
industry-use chain.
􀂙 Mushroom industry and has high potential for both local and global
markets widely.
􀂙 Specialty mushrooms are gaining interest from majority races in unusual
and gourmet foods.
􀂙 For more sustainable agriculture spent mushroom substrate can be
recycled on crop land, horticulture activities and in animal feeding (when
fermented).
􀂙 Lack of advice on establishing new mushroom
enterprises.
􀂙 Lack of facilities to produce quality compost, casing
material, spawn and processed products.
􀂙 Lack of new production technology and farm
management practices.
􀂙 Unstable farm-gate prices and profit margins.
􀂙 Short shelf life affecting potential products to longdistance
markets.
􀂙 Lack of enterprising spirit amongst entrepreneurs.
􀂙 Lack of skills worker since retail mushrooms are
hand-picked.
􀂙 Lack of financial resources for small and medium
enterprise to upgrade facilities, production methods
and to invest in new markets.
􀂙 Un-organized production and sale particularly by
seasonal farmers while demand in the local markets
slightly increase.
Opportunities Threats
􀂙 Awareness about food; health issues and medicinal values is increasing
around the world creating better domestic and global market demand.
􀂙 Improved future sales by enhancing public awareness in environmentallyfriendly
farming by using crop waste and spent mushroom substrate as a
value-added product.
􀂙 Growing mushroom is labour intensive, suitable for both rural areas and
peri-urban dwellers.
􀂙 Creating self-employment for female empowerment and older persons.
􀂙 Reducing dependence on mushrooms imports in Malaysia
􀂙 Diseases and pests invaded affects on product
quality and supply.
􀂙 Limited supply of organic pest control products.
􀂙 Competition from neighbouring countries.
􀂙 Increasing production costs (including labour).
5. Issues and Challenges of Mushrooms Industry in Malaysia
Several issues and challenges were identified that can hinder successful mushroom industry development in Malaysia,
demanding action and strategies to boost the greater production and market-access effectiveness (Table 6).
Table 6. Issues and challenges of mushrooms industry in Malaysia
Issues and challenges Action required
Poor supply and increasingly expensive price of
raw materials, especially sawdust
􀂙 Explore main crop residues and others as an alternative substrate.
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Poor quality of spawn 􀂙 Technological breeding enhancement.
􀂙 Improved R&D investment.
Green fungus diseases and pest attack
(rats, ants, lizards, and cockroaches)
􀂙 Sanitation practices - keeping cleanliness in mushrooms shed.
􀂙 Improved skills development of Good Agricultural Practices (GAPs).
􀂙 Using quality of casing.
􀂙 Improved current production methods with pest management methods.
Lack of relevant skills and knowledge among
entrepreneurs
􀂙 Gaining enterprising spirit through capacity building.
􀂙 Provide marketing skills.
􀂙 Joining national and international trade fairs to get exchange information about
overcoming the challenges and improving cultivation techniques.
Competition from neighbouring countries 􀂙 Creating more variety and improving products diversification.
􀂙 Reduce the growing period and crop rotation lengths for more profitable production.
Unfriendly policy development to growers 􀂙 Promoting new investment towards becoming more competitive.
􀂙 Controlling market price – suitable and affordable prices (perhaps).
􀂙 Financial support especially for small and medium-sized enterprise (possibly).
􀂙 Provide continuous quality spawn supply at low cost.
􀂙 Provide hands-on training on site with extension workers through self-discovery
activities practised in the field.
􀂙 Develop specific policies in trading, branding and food standard for mushroom
products.
􀂙 Possible buy-back guarantee as an incentive for farmers, landless poor and the
unemployed to get them involved in mushroom industry (maybe).
􀂙 Explore sustainable uses and promoting value-added uses for spent mushroom
substrate.
Lack of awareness from local markets 􀂙 Getting the products known for local markets through special programmes and activity.
􀂙 Promote life-style changes through more healthy food eating.
Promotion of mushroom cooking 􀂙 Create more menus and new specialty mushroom products.
Shortage shelf life 􀂙 Explore new technology of extending product shelf life and storage thereby expanding
the market.
􀂙 Improved transport facilities, market accessibility, and consumer preferences.
Low skills of labour 􀂙 Improve in mushroom harvesting skills by picker training courses.
6. Conclusion
Management from ‘waste-to-wealth’ is essential for more sustainable farming globally, and increasing mushroom
production in Malaysia seems a viable and attractive option. Boosting the commercial value of products whether in a
fresh or processed form could increase concentration of demand and encourage market orientation. The demand for
mushrooms especially in the local markets is increase, but it remains quite slow in the local markets. Promoting via
education and good communication among communities would intensify consumer awareness and the knowledge-base
of the wellness properties and value of mushrooms. Capacity-building could also have positive knock-on effects on
individual skills capabilities, especially in cultivation techniques. Access to appropriate varieties of spores, post-harvest
care and marketing could also be beneficial.
Growers, stake holders and Malaysian Government could focus more on increasing markets; expanding consumer
awareness; developing new products and technology; and building-up networking with other agro-food industries.
Providing greater incentives perhaps, especially to new venture and small-scale entrepreneur for running business may
be would ease a burden of grower’s production costs. Subsidy is not regarded, however, as an appropriate marketdistorting
approach in the longer term. Such support could increase the scale of local markets in Malaysia and it could
become a competitive and more significant agribusiness.
References
Agriculture and Food Development Authority. (2013). Mushroom sector development plan to 2020.
Ahlawat, O. P., & Tewari, R. P. (2007). Cultivation technology of paddy straw mushroom (Volvariella volvacea). National Research
Centre for Mushroom: Indian Council of Agricultural Research.
Alexander, S. (2013). How to grow your own oyster mushrooms on straw. The Premature Research Institute.
Amuneke, E. H., Dike, K. S., & Ogbulie, J. N. (2011). Cultivation of Pleurotus ostreatus: An edible mushroom from agrobase waste
products. Journal of Microbiology and Biotechnology Research, 1, 1-14.
Barney, D. L, (n.d.). Growing mushrooms commercially: Risks and opportunities. [Online] Available: http://www.cals.uidaho.edu (May 15,
2015).
Bashir, A., Vaida, N., & Ahmad Dar, M. (2014). Medicinal importance of mushrooms: A review. International Journal of Advanced
Research, 2, 1-4.

CULTIVATING MUSHROOMS on SMALL FARMS

CULTIVATING MUSHROOMS
on SMALL FARMS
Commonly Cultivated
Agaricus Mushrooms
􀂐Agaricus augustus Prince Button Mushroom
􀂐Agaricus bisporus Italian Agaricus,
“portobello” Portabella, Portabellini
􀂐Agaricus bitorquis Warm-Weather Button
􀂐Agaricus bisporus White Button Mushroom,
(=A. brunnescens) Cremini
Limited Cultivation
Edible Fungi
􀂐Morel Morchella esculenta
􀂐Black Morel Morchella angusticeps
􀂐Summer White Truffle Tuber aestivum
􀂐White Italian Truffle Tuber magnatum
􀂐Black Perigord Truffle Tuber melanosporum
􀂐Chanterelles Cantharellus spp.
􀂐Maize Mushroom Ustilago maydis
Culture Parameters
or Conditions to Monitor
􀁽 Relative Humidity:
􀁽 Air T:
􀁽Duration of Stage:
􀁽CO2:
􀁽Fresh Air Exchanges:
􀁽Light:
􀁽Intervals:Semi-Controlled
Conditions
􀁽Temperature of substrate: pocket thermometers
(metal 1-inch dial and 5-inch stem)
􀁽 Air temperature and relative humidity: battery
operated LCD digital thermometer/hygrometer
(Thermo-Hygro ®), which also shows
temperature maximums and minimums.
􀁽Relative Humidity: time-set semi-automated
misting system (Raindial – Irritrol Systems ®
Model RD 600 Ext).
􀁽PVC pipes: along the production areas on the
ceiling, with Turbo-Flo ® Misters, extremely low
flow (1/2 gph) and very small droplet size.ABSTRACT: Interspecific hybridization studies were carried out between P/eurotus sajor-caju, P. sapidus
andP. cornucopiae for obtaining better quality strains. The resultant hybrids were categorised on phenotypic
basis into two categories. In first group, hybrids obtained were similar in appearance, yield and colour etc.
with either of their parents. The second group hybrids had blending of characters of their parents and
possessing the yield potential more or less similar to them. A specific hybrid (hybrid no. 3) obtained with
mating between P. sajor-caju and P. cornucopiae, in which the shape and size of the sporophore was similar
to P. sajor-caju and white colour was resembling with P. cornucopiae. The total average yield of this hybrid
was found to be 23.3 per cent more than the parent.
Keywords: Pleurotus, oyster, interspecific hybridization, mating, desirable characters
Species of Pleurotus can grow on a number of
substrates and a wide range of temperature. But
inspite of easy method of cultivation its production
is very less in comparison to button mushroom in
India. Pleurotus sajor-caju is the most preferred
species suiting to Indian conditions, having 22-
28°Ctemperature range for its vegetative as well
as reproductive growth. Agaricus bisporus, the
commonEuropean white button mushroom requires
more or less the same temperature requirement
for its vegetative growth i.e. 22-25°C but prefers
16-18°Cfor its fruiting. In northern plains of India,
growing season for both the mushrooms is more
or less same, i.e. November to March for Agaricus
bisporus and October to April for Pleurotus sajorcaju.
As the button mushroom is preferred than
the oyster mushroom due to socio-economic
reason,the growers like to grow button mushroom
during this season. In 1996-97, total mushroom
production in India was 40,000 tons, of which
Agaricus contributed 90 percent of the total
production,whereas Pleurotus and Volvariella have
only 10 percent share (Dhar, 1997). During rest of
the year from May to September any of the two
mushrooms (Agaricus and Pleurotus) can not be
grown under natural conditions as the temperature
during this period ranges between 28-46°C in
northern plains. Therefore, there is a need to find
out a strain which can be grown under natural
conditions at a higher temperature and may have
other desirable characters like white colour,
sporelessness, better texture, taste and also high
yielding capability. These qualities are not found in
existing species of Pleurotus. The only exception
is P. fossulatus, which is still not cultivated
commercially and brought from wild for
consumption.
Earlier, attempts have been made for producing
quality strains of Pleurotus. In P. ostreatus,
heterokaryons were developed by Eugenio and
Anderson (1968) and Eger et al., (1976). In P.
sajor-caju, P. florida and P. sapidus, hybridization
were carried out by Bahukhandi and Munjal (1990),
Ghosh and Chakravarty (1991), Thakur and
Bhandal (1993). The hybrids obtained by these
workers did not show much improved characters
and hence lacked popularity and importance among
mushroom growers. Therefore, the studies were
carried out on interspecific hybridization among
the selected three species of oyster mushrooms
namely, P. sajor-caju, P. sapidus and P.
cornucopiae due to their popularity in different
parts of the world, to develop a suitable strain with
desired characters.
62 Indian Phytopathology
MATERIALS AND METHODS
The type cultures of P. sajor-caju, P. sapidus
and P. cornucopiae were obtained from Indian
Type Culture Collection (ITCC), Division of Plant
Pathology, Indian Agricultural Research Institute,
New Delhi vide Acc. Nos. 1725, 2575 and 3312,
respectively and sub-cultured at regular intervals.
Spawn was made on wheat grains and the
sporophores were obtained by standard cultivation
method (Bahukhandi et aI., 1989). The spore prints
were taken from healthy mature sporophores, which
served as spore stock for further study (Watling
1970).
Spore suspension was made by taking small
loop of spores from the spore print and suspended
in sterile distilled water. This solution was diluted
to 10-4 dilutions, where spore concentration remains
4-5 spores per low power microscopic field (10X).
One loop of this solution was streaked on plain
agar in petri plates (pre-demarcated lines) and
incubated at 25-27DC. The germinating spores
were isolated and picked up by a needle! spatula
and placed in P.D.A. slants. A total of 26 single
spore isolates of P. ·sajor=caju, 23 of P. sapidus
and 19 of P. cornucopiae were obtained. These
monokaryans were grown in mediated petri plates
and the hybridization between the three species
was done randomly. Three millimeter diameter
bits were cut out from seven days old monokaryotic
culture and the two monokaryotic cultures were
placed at two opposite ends in petri plates
containing PDA. The single spore isolates were
kept for interspecific crossing in the following way
(Table 1).
[Vol. 55( 1) • 2002]
1. P.sajor-caju x P.sapidus = 26x23=598 pairings
2. P.sajor-caju x P.comucopiae = 26x19=494
pairings
3. P.sapidus x P.comucopiae = 23x19=437
pairings
In this way a total of 1519 number of pairings
were obtained. These paired isolates were
incubated at 25-27DC for 7-10 days for mating. A
small inoculum was taken from the meeting point
of the paired monokaryons if any. The spawn was
made by the standard method and cultivation was
done by the method described earlier (Bahukhandi
et a/., 1989). The sporophore characters like colour,
size, yield and temperature requirement for
cultivation were recorded in different hybrids and
compared with their parents. Hybrids were grown
on chopped paddy straw in small poly bags and
were categorized in 9 groups based on size,
shape, colour and yield etc. From each group one
type sample having higher yield, early fruiting and
light-colour was selected and were used for further
cultivation studies. Hybrid nos. 1-3 were as a
result of mating between P. sajor-caju x
P.comucopiae, 4-6, were between P.sajor-caju x
P.sapidus and 7-9 were between P. sapidus x
P.cornucopiae. Cultivation studies were carried
out in polybags having capacity of one kg. dry
straw. Time taken for substrate colonization,
cropping period and total yield obtained in 4 flushes
was recorded.
The non-mated pairs in all the three crossing
(P.sajor-caju x P. sapidus, P.sajor-caju x P.
cornucopiae and P. sapidus x P. comucopiae)
were cateqorized into 3 classes namely a, band
c according to their hypha I growth pattern.
Table 1. Number and type of mated and non-mated pairs and hybrids obtained after mating three species of
Pleurotus
Species of Total Total Segregation of Total non Morphological
Pleurotus Pairs mating Hybrids (fertile) mating pairs variations (sterile),
obtained pairs A B C a b c
P.sajor-caju x P. sapidOs 598 92 26 ~5) 21 506 425 58 23
P.sajor-caju x P. cornucopiae 494 80 23 39 18 414 360 42 12
P. sapidus xO P cornucopiae 437 90 28 40 22 347 308 23 16
A-Hybrids with characters of first-parent, B-Hybrids with blending of characters of both the parents, C-Hybrids with
characters of second parent, a-Simple non mated pairs, b-Neutral, c-Inhibitory
[Vol. 55(1) : 2002]
RESULTS AND DISCUSSION
It was observed that the single spore
isolates obtained in the three species of Pleurotus
have some peculiar features, by which they were
differentiated from dikaryotic mycelium, (i) The
single spore isolates were having slower growth
and in some cases the growth was limited to
inoculum. (ii) Absence of clamps. (iii) They did not
produce fruiting bodies, during cultivation. Although
some primordial formation were seen in some
monokaryons but they were abortive and did not
grow further. Some of the isolates were not able to
colonize the substrate (Fig. 1).
During the mating process between
monokaryons, four types of reactions were seen
in petriplates on the basis of the nature of the
growth of hyphae. As a result of first reaction
mating occurred and fertile progeny was produced
(A, Band C, Table 1). In this process the hyphae
developing from both the oppositely placed inocula
were anastomosed and showed clear difference in
appearance between individual parents and mating
hyphae, when tested for fertility, they were found
to be fertile (Fig. 2).
The non-mated pairs belonging to remaining
three categories have some special morphological
characters (a,b and c, Table 1). In first category
(a), the hyphae of the monos porous pairs were
intermingled and gave an idea that these have
Indian Phytopathology 63
mated, but after testing they did not produce fruit
bodies and were found sterile. Most of the non
mated pairs belonging to this category (425, 360and
308 respectively in the 3 crosses). In the second
category the hyphae of both the paired monos pores
grew but did not mate and remain separated. This
reaction of the non mated isolates was neutral (b)
and their number in each crossing were 58, 42
and 23 respectively. In the third category, a zone
of inhibition was developed between paired isolates
and their growth occurred in different direction to
each. This reaction was termed as inhibitory (c)
and the number of pairs in this category were
lowest among all the three crosses (23, 12 and 16
respectively).
In fertile isolates (first category) dikaryotization,
clamp connection and sporophore formation were
observed. In three sets of possible crosses the
sterile:fertile ratios were recorded as 506:92, 414:80
and 347:90, respectively in P. sajar-caju x P.
sapidus, P. sajar-caju x P. carnucapiae and P.
sapidus x P.carnucapiae. The hybrids obtained in
the present study in all the above pairings showed
characters corresponding to their parents. There
was hardly any difference between hybrids and
their parents in their vegetative growth characters.
The sporophores in all the above combinations
were categorized in two types. Some of the hybrids
were similar to their either of the parents and
some of them had blending of characters from
Fig.1. Mycelial growth of a dikaryon (A) and monokaryon (B) of Pleurotus sajor- caju
64 Indian Phytopathology [Vol. 55(1) : 2002)
Fig.2. Paired single spore isolates showing mating (A) and non-mating (B) in Pleurotus sajor-caju and P.comucopiae
both the parents. In first set of mating (P. sajorcaju
x P. sapidus) 26 hybrids (sample hybrid-4)
were phenotypically similar to P. sajor-caju (Fig.
3A) and 21 (sample hybrid-5) were similar to P.
sapidus, (Table 1, Fig. 3C). Remaining 45 hybrids
(sample hybrid-6) were possessing blending of
characters between the two parent (Fig. 3B). The
similarities were considered in appearance, colour,
size and texture of fruiting bodies and temperature
requirements for cultivation of the hybrids, etc.
The hybrids had blending of characters having
colour of sporocarp like P. sapidus and size like P.
sajor-caju but there was no other specific character
and the yield was also similar to their parents
(Table 2 shows sample hybrids selected for
cultivation as 4, 5, 6 nos.)
In the crosses between P. sapidus x P.
cornucopiae, more or less same results were
obtained and the resultant number of three types
of hybrids were 28:40:22 (Table 1, Fig 3). The
hybrids did not show any specific character and
were similar in all the respects including yield, with
their parents (Table 2 shows sample hybrids
selected for cultivation as 7,8,9 respectively).
In the third set of crossing between P. sajorcaju
x P. cornucopiae, the phenotypic ratio of
hybrids was 23:39:18 (Table 1, Fig. 3D,E). All
hybrids performed more or less similar results as
in first two cases (Table 2 shows sample hybrids
A, C and D selected for cultivation as 1, 2, 3
respectively). The authors took only sample hybrids
from each groups obtained after hybridization
among the three species numbered as 1, 2, 3, 4,
5, 6, 7, 8 and 9 as mentioned in the text. It has
been observed that total yield in all the hybrids
Table 2. Comparison in yield, spawn running and
total cropping period of the selected hybrids
and their parer.ts
Parents and Time for Cropping Yield
Hybrids substrate period after for 4
colonization colonization flushes
(days) (days) (g)
Parents
Pleurotus sajor-caju16 38 900
P. cornucopiae 17 42 800
P. sapidus 16 40 840
Hybrids
Hy. 1 16 35 950
Hy. 2 17 35 850
Hy.3* 15 31 1080
Hy. 4 17 36 836
Hy. 5 17 35 786
Hy. 6 17 36 860
Hy. 7 18 37 840
Hy. 8 18 38 800
Hy. 9 17 38 850
*Hybrid NO.3 deposited vide I.T.C.C. Ace. No. 3828
in Indian Type Culture Collection
[Vol. 55(1) : 2002]
was more or less similar, however hybrid no. 3
(Fig. 3E) as a result of mating between P. sajorcaju
and P. corn ucopia e, took lesser time in
subtrate colonization and higher yield in shorter
cropping period than rest of the isolates (Table 2).
The fruit bodies of hybrid no. 3 were of whitish
colour, which is an additional advantage over
others as people prefer white-coloured mushrooms.
It was also found to produce fruit bodies upto
32°C.
Fig.3. P. sajor-caju, P. sapidus and P. cornucopiae
and inter specific hybrids developed by crossing
among them. A. Hybrids resembling to P. sajorcaju,
B. Hybrids having blending of characters of
P. sajor-caju and P. sapidus, C. Hybrids
resembling to P. sapidus, D. Hybrids having
blending of characters of P. sajor-caju and P.
cornucopiae, E. Hybrids no. 3 recommended for
cultivation
The data reveals that the hybrid no. 3 is better
yielder than the others and maybe recommended
for cultivation to the mushroom growers. The culture
of hybrid nO.3 was deposited in Indian Type Culture
Collection, Division of Mycology and Plant
Pathology, Indian Agricultural Research Institute,
New Delhi vide Acc. No. 3828 (Table 2).
Pleurotus is heterothallic and tetrapolar
(Anderson et a/., 1973, Bahukhandi and Munjal
Indian Phytopathology 65
1990, Thakur and Bhandal 1993). A single
basidiocarp produces four types of basidiospores
with two different mating factors termed as 'A' and
'B'. Dikaryon is produced by the basidiospores
having different incompatibility factors, which can
be detected on the basis of presence of clamps
and conjugate nuclear division (Raper, 1966).
Roxon and Jong (1977) described four mating
types of Pleurotus sajor-caju as A 1B1, A2B2,
A1B2 and A2B1. Kaufert (1936) reported four
types of reactions, when he mated monokaryons
of P. corticatus and observed mated or compatible,
neutral, antagonistic and inhibitory reactions. In
the present study, however the paired monokaryons
resulted in three types of colonies, which may be
termed as mated, non mated, neutral and
antagonistic. This combination may be compared
with the results of Kaufert (1936). It is also reported
that interstock hybrids gave better yield than
intrastock hybrids in Pleurotus species (Jandaik
1987, Rajarathnam and Bano 1987, Thakur and
Bhandal 1993). During this study it has been
observed that the resultant hybrids produced more
or less similar yield as their parents but the hybrid
produced by crossing between P. sajor-caju and
P. cornucopiae, resulted 23.3 per cent more yield
as compared to his parents, which is in agreement
with that of earlier workers. Like Schizophyllum
and Coprinus, in Pleurotus also, among four
basidiospores one type can mate only with one of
the remaining three basidiospores, therefore the
sterile:fertile ratio is 75:25. It is only possible to get
a clear picture of sterile:fertile ratio, when the
pairing will be maximum (Eger 1974, Liang and
Chang 1989, Toyomasu and Mori 1989).
In the present study, the F1 hybrid (Hybrid No.
3) obtained by crossing between P. sajor-caju and
P. cornucopiae having blended characters but
higher yield than its parents, while other F1-hybrids
were almost similar to their parents in terms of
yield potential and other morphological features.
Further studies in this direction are required for
obtaining other desirable traits in the new hybrids.
ACKNOWLEDGEMENT
The authors are very thankful to the Head,
Division of Plant Pathology, IARI, New Delhi for
providing necessary facilities to carry out this
work.
66 Indian Phytopathology
REFERENCES
Anderson, N.A., Wang, S.S. and Schwandt, J.W.
(1973). The Pleurotus ostreatus - sapidus species
complex. Mycologia 65: 28-35
Bahukhandi D. and Munjal, R.L. (1990). Studies on
evolving high yielding strains of Pleurotus sajorcaju
through hybridization. Indian Phytopath 43(1):
70-73.
Bahukhandi, D., Munjal, R.L. and Kapoor. J.N. (1989).
Cultivation trials of Pleurotus opuntiae (Dur. and
Lev.) Sacco Current Science 58(15): 856-857.
Dhar, B.L. (1997). Mushroom Industry in India - A
view., in Advances in Mushroom Biology and
Production (Eds. Rai, Dhar and Verma). Mushroom
Society of India, Solan H.P. pp.369-378.
Eger, G. (1974). Rapid method for breeding Pleurotus
ostreatus. Mushroom Science 9: 567-573.
Eger, G., Eden,' G. and Wissing, E. (1976). Pleurotus
ostreatus, breeding potential of a new cultivated
mushroom. Theor. Appl. Genet. 47: 155-163.
Eugenio, C.P. and Anderson, N.A. (1968). The
genetics and cultivation of P. ostreatus. Mycologia
60: 627-634.
Ghosh, Nand Chakravarty, D.K. (1991). Studies on
evolving new strains of Pleurotus sajor-caju by
selective dikaryotization. Indian Mushsrooms 19:
69-72.
Jandaik, C.L. (1987). Breeding potential of Pleurotus
species in India with special reference to P. sajor-
[Vol. 55(1) : 2002]
caju: Indian Mushroom Science II, (Eds. T.N. Kaul
and B.M. Kapoor) Srinagar pp.355-360.
Kaufert, F.H. (1936). The Biology of Pleurotus corticatus
Fr. Minnesota, A.E.S. Tech. Bull. 114: 3-35.
Liang, Z.R. and Chang, S.T. (1989). A study of
intergeneric hybridization between P. sajor-caju
and Schizophyllum commune by protoplast fusion.
Mushroom Sci. 12: 125-137.
Rajarathnam, S. and Bano, Z. (1987). Pleurotus
mushroom part I.A. , Morphology, life cycle,
taxonomy, breeding and cultivation. C.R.C. critical
reviews in Food Science and Nutrition 26: 179-
185.
Raper, J.R. (1966). Genetics and sexuality of higher
fungi, New York. The Ronald Press Company,
New York. 283pp.
Roxon, J. and Jong, S.C. (1977). Sexuality of an
edible mushroom, Pleurotus sajor-caju. Mycologia
69: 203-205.
Thakur, K. and Bhandal, M.S. (1993). Monosporous
isolates and their intermating in Pleurotus sapidus
and P. sajor-caju. Mushroom Res. 2: 41-44.
Toyomasu, T. and Mori, Kan-Ichi (1989)-.
Characteristics of the fusion products obtained by
intra and interspecific protoplast fusion between
Pleurotus species. Mushroom Sci. 12(1): 151-159.
Watling, R. (1970). Spore colour. Bull. Br. Mycol. Soc.
􀁽Watering


Monday, September 18, 2017

The Deutsches Museum

The Deutsches Museum (German Museum) (or das Deutsche Museum[note 1]) in Munich, Germany is the world's largest museum of science and technology, with about 28,000 exhibited objects from 50 fields of science and technology.[1] It receives about 1.5 million visitors per year.

The museum was founded on 28 June 1903, at a meeting of the Association of German Engineers (VDI) as an initiative of Oskar von Miller. Its official name is Deutsches Museum von Meisterwerken der Naturwissenschaft und Technik (English: German Museum of Masterpieces of Science and Technology). It is the largest museum in Munich. For a period of time the museum was used to host pop and rock concerts including The Who, Jimi Hendrix and Elton John.[2]The main site of the Deutsches Museum is a small island in the Isar river, which had been used for rafting wood since the Middle Ages. The island did not have any buildings before 1772 because it was regularly flooded prior to the building of the Sylvensteinspeicher.


Deutsches Museum as seen from Ludwigsbrücke
In 1772 the Isar barracks were built on the island and, after the flooding of 1899, the buildings were rebuilt with flood protection. In 1903 the city council announced that they would donate the island for the newly built Deutsches Museum. The island formerly known as Kohleninsel (coal island) was then renamed Museumsinsel (museum island de)
In addition to the main site on the Museumsinsel, the museum has two branches in and near Munich and one in Bonn.

The Flugwerft Schleißheim branch is located some 18 kilometres north of Munich's city centre close to Schleißheim Palace. It is based on the premises of one of the first military airbases in Germany founded just before World War I. It comprises the old air control and command centre as well as modern buildings added in the late 2000s after strong endorsement from Franz-Josef Strauss, the then prime minister of the state of Bavaria, who was a passionate flyer.


Deutsches Museum Bonn
The Flugwerft Schleißheim displays various interesting airplanes for which there was insufficient room at the Museumsinsel site in downtown Munich. Among the more prominent exhibits is a Horten flying wing glider built in the 1940s, restored from the few surviving parts. A collection of the German constructions of VTOL (vertical take off and landing) planes developed in the 1950s and 1960s is unique. A range of Vietnam era fighter planes as well as Russian planes taken over from East Germany after the reunification are on display. This outstation also features a workshop dedicated to the restoration of all types of airplanes intended for static display.

The latest branch of the Deutsches Museum, located at Theresienhöhe in Munich, opened in 2003 and is called the Deutsches Museum Verkehrszentrum and is focused on transportation technology.

The branch located in Bonn was opened in 1995 and focuses on German technology, science and research after 1945.
Oskar von Miller[edit]

Oskar von Miller
Oskar von Miller studied electrical engineering and is otherwise known for building the first high voltage line from Miesbach to Munich (57 km) in 1882 for the electrical technology exhibition at the Glaspalast in Munich. In 1883 he joined AEG and founded an engineering office in Munich. The Frankfurt electricity exhibition in 1891 and several power plants contributed to the reputation of Oskar von Miller. In the early years, the exhibition and the collection of the Deutsches Museum were strongly influenced personally by Oskar von Miller.
History[edit]
A few months before the 1903 meeting of the Society of German Engineers, Oskar von Miller gathered a small group who supported his desire to found a science and technology museum. In a showing of support this group spontaneously donated 260,000 marks to the cause and elected a "Provisional Committee" to get the ball rolling.


Model train set with many of Europe's rail types
In June 1903, Prince Ludwig agreed to act as patron of the museum and the city of Munich donated Coal Island as a site for the project. In addition, exhibits began to arrive from Munich, Germany, and abroad including collections from the Bavarian Academy. As no dedicated museum building existed, the exhibits were displayed in the National Museum.

On 12 November 1906, the temporary exhibits at the National Museum were ceremonially opened to the public and on November 13 the foundation stone was laid for the permanent museum.

The first name of the museum, the "German Museum for Masterpieces of Natural Science and Technology", was not meant to limit the museum to German advances in science and technology, but to express the importance of science and technology to the German people.

Oskar von Miller opened the new museum on his 70th birthday, 2 May 1925, after a delay of almost ten years. From the beginning, the museum displays are backed up by documents available in a public library and archives, which are open seven days a week to ensure access to the working public.


Clean white lines of the museum's winding staircase
Before and during World War II the museum was put on a shoestring budget by the Nazi party and many exhibits were allowed to get out of date with a few exceptions such as the new automobile room dedicated 7 May 1937. By the end of 1944 the museum was badly damaged by air bombings with 80% of the buildings and 20% of the exhibits damaged or destroyed. As Allied troops marched into Munich in April 1945, museum director, Karl Bässler, barely managed to keep the last standing bridge to Museum Island from being blown up by retreating German troops.

Following the war the museum had to be closed for repairs and temporary tenants, such as the College of Technology and the Post Office used museum space as their own buildings were being reconstructed. The Museum was also home to the Central Committee of the Liberated Jews, representing Jewish displaced persons in the American Zone of Germany after the war.

In November 1945, the library was able to reopen, followed by the congress hall in January 1946. A special exhibit on fifty years of the Diesel engine opened in October 1947 and the regular exhibits began reopening in May 1948. Not until 1965, more than twenty years after the end of the war in Germany, did the exhibit area match (and then exceed) pre-war size.

During the 1950s, the museum focused on natural sciences rather than technology and many of the traditional large exhibits, such as civil engineering, were reduced in size to make way for more modern technological advances.


Reproduction of cave of Altamira in Deutsches Museum.
In August 1969, the Apollo 8 space capsule was shown in a special exhibit entitled "Man and Space" and in 1970 the first full-time director, Theo Stillger, was appointed. In the 1970s the mission statement of the museum was modified to encourage the explanation of the cultural significance of science and technology in exhibits.

The early 1980s saw severe damage to several exhibits due to arson resulting in the smallest exhibit space of 34,140 square meters. This was followed by an extensive reconstruction effort and additional building bringing the total exhibit space to 55,000 square meters by 1993. The 1980s and '90s also brought agreements with the Science Centre in Bonn and the government resulting in the creation of Deutsches Museum Bonn and the Flugwerft Schleißheim airfield exhibit.


Glass Fowl from glass section of museum souvenir shop
In 1996, the Bavarian Government gave buildings at the historic Theresienhöhe site in Munich to the Deutsches Museum resulting in the creation of the new transportation museum, the Deutsches Museum Verkehrszentrum, which opened in 2003 and now houses the road vehicle and train exhibits that were removed from the original Deutsches Museum site. The Theresienhöhe quarter is a new area on the edge of the inner city of Munich, and the Museum of Transport is a part of the quarter's design of mixed use.
1903 Museum's foundation
1906 Opening the provisional collections in the rooms of the former National Museum in Maximilianstrasse
1909 Opening additional collections in the old barracks on the Isar (Ehrhardtstraße)
1911 Topping out ceremony of collection house
1925 Opening of the Deutsches Museum in the new building on Museum Island
1928 Laying the foundation stone for the library and hall
1930 Topping out ceremony of the library and hall
1932 Opening of the library
1935 Opening of the Congress Center
1944 Destruction of 80 percent of the building
1948 Reopening after the destruction
1983 Destruction of marine and engine sections by fire
1984 Opening of the new hall for Aerospace; temporary closure of some departments to hail and water damage
1992 Opening of the Schleißheim's Aviation Museum at the Oberschleißheim's airport
1995 Opening a branch of the Deutsches Museum in Bonn
2003 Opening of the Transportation Center on the former exhibition grounds
2006 Opening the Halls I and II of Transportation Center on the Theresienhöhe

October 2015 start of the first major phase of renovation/modernization, with several exhibits closing down