The tip and leaf of sweet potato stem is a kind of vegetable with high nutritional value. In the vegetables market in the United States, Japan, South Korea, Southeast Asian countries and China Taiwan, Hong Kong, sweet potato leaf, stem tip are the best-selling species, in the United States known as "space "Health foods" and "space foods" are called "longevity foods" in Japan and Taiwan, and "food queens" in Hong Kong. The average selling price is 100 HKD/kg. In China, people have long had the habit of eating sweet potato leaves, but little is known about their nutritional value.
Sweet potato stems and leaves are very rich in nutrition and are unmatched by many kinds of vegetables. According to tests conducted by the Shandong Academy of Agricultural Sciences and the Institute of Food Science on stem tips and leaves of several major sweetpotato varieties in our province, the protein content is 22.6-36% of dry matter, which is equivalent to that of beef and pork. Times, crude fiber content is one of the important signs of healthy food, its content is 8.6-11.4%, total sugar content is 11.8-25%, carotene content is nearly 4 times higher than carrot, vitamin B1 content is 2.98mɡ/Kɡ, vitamin B2 (riboflavin) content 98.02-112.41mɡ/Kɡ, same as celery and Chinese cabbage, vitamin B6 content 208.66-310.75mɡ/Kɡ, vitamin C content 48.52-64.16mɡ/K, equivalent to leeks, larger than celery, Cabbage is twice as high, and minerals such as calcium, iron, phosphorus and zinc are also higher than ordinary leafy vegetables. In particular, black and purple sweet potato stem tips contain selenium elements that are anti-cancer substances, which have a good effect on cancer prevention and cancer resistance. According to medical experts' tests, sweet potato tips, leaves, and stems have good health care functions, and they have the functions of "supplement for qi, strengthening vital energy, strengthening kidneys, benefiting lungs, and promoting anti-cancer, anti-aging, and anti-aging." They also have enhanced immune function. , improve the body resistance to disease, promote metabolism, delay aging, reduce blood sugar, pass urine, platelets, stop bleeding, prevent arteriosclerosis, prevent cell cancer, prolactin detoxification, protect vision, prevent night blindness of good health care functions. According to foreign experts, sweet potato leaves also have a role in weight loss and beauty. In recent years, a variety of stem-tip sweet potato varieties have been specifically researched and cultivated in China.
Sweet potato has less pests and diseases, rarely uses pesticides, is basically non-polluting, and is close to pollution-free foods. It is often eaten and can live long and healthy.
How to eat: 1 stir fry, like fried celery, cabbage, bean sprouts like direct cooking. 2 stir-fried: stir-fried with chicken, meat, eggs. 3 Cold: After boiling in boiling water, mix with garlic or hot oil. 4 Make soup and make soup like spinach and cabbage. 5 steamed food: After washing with noodles, like steamed rice like food. 6 Make buns and dumplings.
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