It is divided into black-skinned green beans and black-skinned soybeans. Black-skinned green beans are named for their dark seed coat and blue nuts. Black-skinned soybeans are introduced from Japan.

The protein content of black beans is 36%, which is easy to digest, and it is of great significance to meet the human demand for protein. The fat content is 16%, mainly containing unsaturated fatty acids, and the absorption rate is as high as 95%, which not only meets the human body's demand for fat, but also has the function of lowering blood cholesterol;

Extended data:

1, scavenging free radicals and delaying aging.

Black bean polysaccharide has immunosuppressive effect on phagocytic function of phagocytes, reducing phagocytic function of phagocytes and production of corresponding reactive oxygen species. It is also possible to have immunosuppressive effect on white blood cells by indirectly scavenging reactive oxygen species. In addition, black bean pigment can directly remove reactive oxygen species produced by cellular system and acellular system.

2, regulate blood lipid protein, prevent and treat blood lipid increase.

Black bean fruit oil can delay the formation and development of arteriosclerosis by regulating blood lipid and blood lipid protein cholesterol, and has preventive and therapeutic effects.

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