Shiitake mushrooms are nutritious and delicious health foods. They are known as "the crown of edible fungi", "the pinnacle of plant foods" and "the king of mountain delicacies". Next, let’s talk about the nutrition of shiitake mushrooms:
Protein
The protein contained in shiitake mushrooms can be divided into simple protein and complex protein. Complex protein is a combination of simple protein and non-protein components. Complexes, such as nuclear proteins, lipoproteins, glycoproteins, etc.; various amino acids are produced when simple proteins are hydrolyzed. Shiitake mushrooms are rich in amino acids, containing 8 essential amino acids and 10 non-essential amino acids. Shiitake mushrooms also contain many enzymes that can promote life activities. Shiitake mushrooms are known to contain 39 kinds of enzymes, such as pepsin, trypsin, and pectin. Enzymes, cellulase, amylase, intestinal skin enzyme, alcohol enzyme, etc. Various protein components in shiitake mushrooms play an important role in maintaining normal physiological functions of the human body.
Fat
Shiitake mushroom fat is mainly composed of unsaturated fatty acids, in which the content of linoleic acid is very high, which is equivalent to or even higher than safflower seed oil, which has the highest nutritional value among vegetable oils. It is known that shiitake mushrooms contain 11 kinds of organic acids, accounting for 1.1% to 1.5% of dry weight, which are very beneficial to lowering blood lipids and preventing cardiovascular diseases such as arteriosclerosis and hypertension.
Shiitake mushroom cells are also rich in lecithin, which combines with proteins to form lipoproteins that are components of cell membranes, endoplasmic membranes, endoplasmic reticulum and mitochondrial membranes. Mushrooms also contain ergostol, the precursor of vitamin D2, which can be converted into vitamin D2 after exposure to sunlight or ultraviolet rays. It helps the body absorb calcium and is good for preventing osteoporosis.
Carbohydrates
The carbohydrate content in shiitake mushrooms is about 50% to 60%, the most of which are polysaccharides and hemicellulose. Fiber-based foods can strengthen gastrointestinal motility and prevent constipation. Dietary fiber can also absorb excess cholesterol in the blood and excrete it from the body through the intestines. The fiber in shiitake mushrooms helps prevent high blood pressure and gastrointestinal system tumors.
The health-care effects of lentinan
Lentinan has a variety of biological activities. The current research is relatively clear that lentinan, which has immune activity, has the effect of improving human immune function and anti-tumor.
Leiinine purine
Leiinine purine can inhibit the absorption and formation of cholesterol in the body, promote the decomposition and excretion of cholesterol, and has the effect of lowering blood lipids.
Mineral elements
Shiitake mushrooms contain a variety of abundant mineral elements with physiological activity. It not only contains a large number of essential elements calcium, magnesium, potassium, phosphorus, and sulfur, but also contains essential trace elements zinc, copper, iron, manganese, nickel, chromium, selenium, germanium, etc.,
vitamins
Vitamins are essential substances to maintain normal physiological needs of the human body. Generally they cannot be synthesized in the human body and must be supplied by food. The vitamins in shiitake mushrooms include VB1, V?B2, niacin, V?C?, V?D?, V?E?, etc. In addition, it also contains a small amount of?VA. Among them, the content of VB12 is higher than that of meat, which can prevent pernicious anemia and improve neurological function.
Shiitake mushrooms are indeed nutritious and delicious and can be eaten regularly, but patients with gout should reduce their intake.