2)  Nutrition:
1.In a 100 gram amount, raw shiitake mushrooms provide 34 calories and are 90% water, 7% carbohydrates, 2% protein and less than 1% fat (table for raw mushrooms).
2.Raw shiitake mushrooms are rich sources (20% or more of the Daily Value, DV) of B vitamins and contain moderate levels of some dietary minerals (table). When dried to about 10% water, the contents of numerous nutrients increase substantially.

3）The effect and function of shiitake mushrooms
1. Improve the immune function of the body
The polysaccharide can improve the phagocytic function of the macrophages in mice, and it can also promote the production of T lymphocytes and improve the killing activity of T lymphocytes.
2. Delay aging
The water extract of shiitake mushrooms  has a certain elimination effect on hydrogen peroxide in the body.
3. Anti-cancer
One of the other compounds found in shiitake mushrooms, known as the shiitrine (also known as red ketopurine), lowers cholesterol levels.Mushrooms contain 12 times more antioxidants than malt, and four times as much as chicken liver.Compared with matsutake mushrooms and grifola frondosa, it lowers blood pressure and ward off cancer.
Lower blood pressure, blood lipid and cholesterol
Mushrooms contain purine, choline, tyrosine, oxidase, and some of the nucleic acid material, can rise to fall blood pressure, cholesterol, cholesterol-lowering effect, and can prevent diseases such as arteriosclerosis, cirrhosis of the liver.
5. Treatment of diseases
Shiitake is also for the treatment of diabetes, tuberculosis, infectious hepatitis, neuritis, and can be used for indigestion, constipation, etc.

 4）
Shiitake(scientific name: Lentinus edodes),known as "Mountain King" with high protein, low fatty.
It contains protein, starch, vitamins and nutrient, good for health.
Dried shiitake mushrooms (gan xiang gu) are made from smoked fresh shiitake mushrooms, and they have an intense smoky flavor and a meaty texture. Dried shiitake mushrooms are one of the most important ingredients in cooking, and are widely used in stews, soups, braised dishes, and stir fried dishes. 

5） Uses:
1.An elegant, earthy complement to vegetarian risotto and pasta dishes
2.Add depth of flavor to stir-fries
3.Add rich umami flavor to sauces and soups
4.A delicious accent flavor with steak or chicken
5.Pulverize dry shiitake mushrooms to create a multi-purpose “umami powder” that enhances meat, vegetables, starches, grains and sauces. 

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