Nutritional value of fresh lentinan
Lentinus edodes also contains a kind of dextran with high purity and high molecular structure, namely lentinan, which has the functions of antivirus, inducing interferon and protecting liver. If patients with hepatitis B often eat mushrooms, it can not only improve the immune function of the body and reduce alanine aminotransferase (SGPT), but also prevent the further development of the disease. In addition, lentinan also has anti-tumor effect, and has curative effects on lung cancer, breast cancer, gastric cancer, colon cancer, rectal cancer and uterine cancer.
dietary fibre
Mushrooms are rich in dietary fiber, which can promote gastrointestinal peristalsis, help the body remove garbage, prevent symptoms such as poor defecation, and effectively shrink the lower abdomen. In addition, it can inhibit the absorption of fat and has a good weight loss effect. Moreover, the calories of mushrooms are relatively low, so they are good slimming dishes no matter how they are cooked.
vitamin
Mushrooms contain various vitamins, which can prevent and treat various diseases caused by vitamin deficiency, such as oral ulcer, beriberi, keratitis, dermatosis, anemia, night blindness and so on.
nucleic acid
Lentinus edodes contains a nucleic acid substance, which can inhibit the increase of cholesterol in serum and liver, prevent arteriosclerosis and lower blood pressure. It is a good diet for patients with hypertension and diabetes.
Water soluble lignin
According to the research team of Tokyo University in Japan, the water-soluble lignin extracted from Lentinus edodes has the function of stimulating macrophages, contributing to the enhancement of bone marrow cells in the blood, and has a strong inhibitory effect on the proliferation of HIV.
β -glucosidase
In recent years, American scientists have found that shiitake mushrooms contain a kind of "β-glucosidase". Experiments show that this substance has obvious anti-cancer effect on the body. Therefore, people call mushrooms "anti-cancer recruits".
ergosterol
Ergosterol, an effective component in shiitake mushrooms, can be converted into vitamin D if it is irradiated by sunlight. Vitamin D is an indispensable substance for regulating calcium and phosphorus metabolism, which can promote the growth and calcification of bone tissue. Therefore, mushrooms are one of the important foods to prevent rickets in children and adults.
Interferon-induced organism
Lentinus edodes can also resist cold virus, because it contains interferon inducer, which can induce the production of interferon in the body, interfere with the synthesis of virus protein, and make it impossible to reproduce, thus making the human body immune.
fragrant mushroom
Lentinus edodes is rich in alkaloid Lentinus edodes purine, which can reduce blood cholesterol and effectively prevent arteriosclerosis.
How to choose mushrooms and smell them first?
Some unscrupulous vendors soak mushrooms in formaldehyde to keep them fresh. Don't buy mushrooms if they have an unpleasant smell.
Look at this mushroom hat
The mushroom shape is round, the mushroom meat is thick, and the mushroom cover is rolled up better.
Look at the size
Not too big or too small, the cap is 3~6 cm.
Bacterial fold
The white part is neat, the surface is not sticky or slippery, and there is no mildew spot for the top grade.
Look at this stalk
It is best to be short and thick, with uniform size and hard feel. In order to increase the weight, some businesses deliberately do not cut stalks. Short stalks are more affordable to consumers, after all, they eat the cap part.