Soy contains high quality protein, unsaturated fatty acids
Soybean contains rich high quality protein, unsaturated fatty acid, calcium and B vitamins, which are important sources of high quality protein in diets of Chinese residents. The protein content of soybean is about 35%-40%. Except methionine, the composition and proportion of other essential amino acids are similar to that of animal protein. Besides, soybean is rich in lysine, which is lacking in cereal protein.
Soybean fat content is about 15%-20%, during which unsaturated fatty acids account for 85%, linoleic acid up to 50%, and high digestibility, but also contains more phospholipid. The carbohydrate content of soybeans is about 25% to 30%.
Half is dietary fiber, during which raffasose and hydrothreose ferment to produce gas under the influence of gut bacteria, which can cause bloating. Soybean contains rich phosphorus, iron and calcium, with 571mg of phosphorus, 11mg of iron and 367mg of calcium per 100g of soybean, which is significantly more than cereal.
The high phytic acid content in soybean may affect the bioavailability of mineral elements such as iron and zinc. The content of B vitamins such as vitamin B1, vitamin B2 and niacin in soybeans is also more than that of cereals, and contains a certain amount of carotene and rich vitamin E.
The seeds of soybeans are 17 percent oil and 63 percent flour, with 50 percent protein in between. Because soy contains no starch; So it is suitable for diabetic patients to eat. In East Asia, soybeans are widely used to make soymilk and tofu. It can also be baked for snacks.
