Sweet potato is also called sweet potato.

Sweet potato belongs to Convolvulaceae, its root tuber is coarse cereals, its tender stems and leaves are edible vegetables, which can be used for brewing wine and extracting starch, and its stems and leaves are high-quality feed, which can be eaten.

Although the germinated sweet potato can be eaten, if the skin is brown or black spots, it can't be eaten because it is polluted by black spot bacteria. The toxin released by Alternaria alternata contains sweet potato ketone and sweet potato ketone alcohol, which makes sweet potato hard and bitter and highly toxic to human liver.

Extended data:

Nutritional value of sweet potato;

1, cancer prevention: eating sweet potatoes often helps to maintain the normal folic acid level of the human body, and low folic acid content in the body will increase the risk of cancer. Sweet potato has high dietary fiber content, which can promote gastrointestinal peristalsis and prevent constipation and colorectal cancer.

2, heart health care: sweet potato is rich in potassium, beta-carotene, folic acid, vitamin C and vitamin B6, these five ingredients help prevent cardiovascular diseases. Sweet potato contains collagen and mucopolysaccharide, which can reduce the content of total cholesterol in blood and prevent arteriosclerosis and coronary heart disease.

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