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Mushroom – Nutritional Value and Production

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Mushroom is a fruiting body of fungi which lacks chlorophyll and depend on organic matter for its growth and nutrition. Mushroom contains all the major nutrients such as protein, carbohydrates, vitamins and minerals. They are rich in fiber also.

It is a rich source of protein. Dry mushroom contains about 20-37% protein. This protein contains twenty amino acids including essential and semi-essential amino acids that our body cannot synthesize. Qualitatively the mushroom protein is next only to soybean protein.

It contains 4.5-5.0% carbohydrate and 0.20 – 0.80% fat on fresh weight basis. Mushroom contains significant amount of vitamin B1, B2, B3, B5, B12, B complex, vitamin C, vitamin E, vitamin K but do not contain vitamin A and vitamin D. However it contains argosterol which is converted in vitamin D in human body. It is also rich source of minerals such as sodium, potassium, copper, iron, magnesium, selenium, calcium, phosphorus etc. and proper ratio of K/Na. There is no cholesterol in mushroom. That is why mushroom has been suggested as supplementary food by FAO.

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Edible mushrooms are consumed by humans as comestibles for their nutritional value and they are occasionally consumed for their supposed medicinal value. Mushrooms consumed by those practicing folk medicine are known as medicinal mushrooms. While hallucinogenic mushrooms (e.g. Psilocybin mushrooms) are occasionally consumed for recreational or religious purposes, they can produce severe nausea and disorientation, and are therefore not commonly considered edible mushrooms.

Edible mushrooms include many fungal species that are either harvested wild or cultivated. Easily cultivatable and common wild mushrooms are often available in markets, and those that are more difficult to obtain (such as the prized truffle and matsutake) may be collected on a smaller scale by private gatherers. Some preparations may render certain poisonous mushrooms fit for consumption.

Before assuming that any wild mushroom is edible, it should be identified. Proper identification of a species is the only safe way to ensure edibility. Some mushrooms that are edible for most people can cause allergic reactions in some individuals, and old or improperly stored specimens can causefood poisoning.

A fraction of the many fungi consumed by humans are currently cultivated and sold commercially. Commercial cultivation is important ecologically, as there have been concerns of depletion of larger fungi such as chanterelles in Europe, possibly because the group has grown so popular yet remains a challenge to cultivate.

Medicinal mushrooms are mushrooms or extracts from mushrooms that are thought to be treatments for diseases, yet remain unconfirmed in mainstream science and medicine, and so are not approved as drugs or medical treatments. Such use of mushrooms therefore falls into the domain of traditional medicine.

Preliminary research has shown some medicinal mushroom isolates to have cardiovascular, anticancer, antiviral, antibacterial, antiparasitic, anti-inflammatory, and antidiabetic properties. Currently, several extracts (polysaccharide-K, polysaccharide peptide, lentinan) have widespread use in Japan, Korea and China, as potential adjuvants to radiation treatments and chemotherapy

Mushrooms are rich in Vitamin D

Mushrooms that have been exposed to ultraviolet (UV) light contain large amounts of vitamin D2. Mushrooms, when exposed to UV light, convert ergosterol, a chemical found in large concentrations in many mushrooms, to vitamin D2. This is similar to the reaction in humans, where Vitamin D3 is synthesized after exposure to UV light.

Edible mushrooms in a healthy diet
Testing showed an hour of UV light exposure before harvesting made a serving of mushrooms contain twice the U.S. Food and Drug Administration’s daily recommendation of vitamin D, and 5 minutes of UV light exposure after harvesting made a serving of mushrooms contain four times the FDA’s daily recommendation of Vitamin D. High performance liquid chromatography analysis has also demonstrated the effect sunlight has on mushroom vitamin D2 content.

Worldwide Production of Mushrooms

Mushroom cultivation has a long history, with over twenty species commercially cultivated. Mushrooms are cultivated in at least 60 countries with China, the United States, Netherlands, France and Poland being the top five producers in 2000. Though situation has been changed a bit as per data Mushroom production data available for year 2011. The top five mushroom producers of 2011 were China, Italy, France, Canada & Ireland.

Top 30 Mushroom and truffle producing countries in 2011
Country Output
Tonnes Long Tons Short Tons Percentage of World Output
China 5,008,850 4,929,740 5,521,310 65.1
Italy 761,858 749,826 839,805 9.9
France 115,669 113,842 127,503 1.5
Canada 78,930 77,680 87,010 1.03
Ireland 67,063 66,004 73,924 0.871
Germany 62,000 61,000 68,000 0.805
Japan 60,180 59,230 66,340 0.782
Australia 49,696 48,911 54,780 0.646
Indonesia 45,851 45,127 50,542 0.596
Belgium 41,556 40,900 45,808 0.54
India 41,000 40,000 45,000 0.533
Iran 37,664 37,069 41,517 0.489
Hungary 14,249 14,024 15,707 0.185
Denmark 10,304 10,141 11,358 0.134
Israel 10,001 9,843 11,024 0.13
Belarus 5,934 5,840 6,541 0.0771
Greece 3,255 3,204 3,588 0.0423
Bulgaria 2,171 2,137 2,393 0.0282
Finland 1,668 1,642 1,839 0.0217
Austria 1,600 1,600 1,800 0.0208
Azerbaijan 1,450 1,430 1,600 0.0188
Jordan 1,123 1,105 1,238 0.0146
Bosnia and Herzegovina 994 978 1,096 0.0129
Cyprus 730 720 800 0.00948
Iceland 583 574 643 0.00757
Kazakhstan 558 549 615 0.00725
Czech Republic 361 355 398 0.00469
Algeria 220 220 240 0.00286
Estonia 125 123 138 0.00162
Albania 123 121 136 0.0016
Brunei Darussalam 11 11 12 0.000143

– With inputs from Wikipedia





 

Read Also: Health Benefits Of Mushrooms – 13 Amazing & Surprising Facts








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