Like the appearance of ordinary sweet potatoes, purple potatoes, also known as black potatoes, the English name Purple Potato, potato flesh is purple to dark purple. In addition to the nutrients of ordinary sweet potatoes, it is also rich in selenium and anthocyanins. Anthocyanin has preventive and therapeutic effects on more than 100 diseases, and is known as the seventh essential nutrient after water, protein, fat, carbohydrates, vitamins and minerals. In recent years, purple potatoes in the international and domestic markets are very popular, the development prospects are very broad.

Medicinal value

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Purple potatoes are rich in protein, 18 kinds of amino acids easily digested and absorbed by the human body, vitamin C, B, A and other 8 kinds of vitamins and phosphorus, iron and other 10 kinds of natural mineral elements. Among them, iron and selenium are rich. And selenium and iron is the body's anti-fatigue, anti-aging, blood necessary elements, especially selenium is known as "anti-cancer king", easy to be absorbed by the human body, can stay in the blood serum, repair the heart muscle, enhance the body's immunity, clear the body of free radicals, inhibit the synthesis of DNA in the cancer cells and cancer cell division and growth, prevention of gastric cancer, hepatocellular cancer and other cancerous diseases. Prevent stomach cancer, liver cancer and other cancerous diseases from occurring. Purple potatoes are rich in fiber, can increase the volume of feces, promote gastrointestinal peristalsis, clean up the intestinal lumen of mucus, gas and corruption, discharge of feces in the toxic substances and carcinogenic substances, to maintain the smooth flow of feces, improve the environment of the digestive tract, to prevent gastrointestinal diseases.　

Purple potatoes contain a large number of high medicinal value of anthocyanins, French scientists Dr. Masquerade found that anthocyanins are natural strong free radical scavengers. Anthocyanins have preventive and therapeutic effects on more than 100 diseases, and are known as the seventh essential nutrient following water, protein, fat, carbohydrates, vitamins and minerals. Anthocyanins are the most direct, effective and safe free radical scavenger found in the prevention and treatment of diseases and maintenance of human health, and their ability to remove free radicals is 20 times that of vitamin C and 50 times that of vitamin E. Anthocyanins have a small molecular structure and can be used in the prevention and treatment of more than 100 diseases. Anthocyanin has a small molecular structure, is the only through the blood-brain barrier to remove free radicals to protect the brain cells of the substance, while reducing the harm caused by antibiotics to the human body.