Detailed introduction of sweet potato practices and nutrition knowledge Click to browse sweet potato recipes (* * * You 1 12 sweet potato practices) Alias: sweet potato, sweet potato, sweet potato, sweet potato. Tips for use: 1 (about 150g) Introduction of sweet potato knowledge: sweet. Sweet potato is sweet, nutritious, easy to digest and can provide a lot of heat energy, so some countries in Africa and Asia take sweet potato as their staple food. Sweet potato originated in South America and was introduced to China from the Philippines and Viet Nam in the16th century. At present, it is cultivated all over China, especially in Huaihai Plain, the Yangtze River Basin and the southeast coastal provinces. Sweet potato is rich in sugar, protein, cellulose and vitamins, especially β-carotene, vitamin E and vitamin C, especially sweet potato is rich in lysine, while rice and flour just lack lysine. Therefore, the mixture of sweet potato and rice flour can play a complementary role in protein and improve the nutritional value. As far as overall nutrition is concerned, sweet potato is the best of all grains and vegetables. Europeans and Americans regard it as the "second bread", scientists in the former Soviet Union say it is the future "space food", and the French call it a well-deserved "advanced health food". Nutritional analysis of sweet potato: 1. Tonifying blood and invigorating middle energizer: Sweet potato is very nutritious, containing a lot of sugar, protein, fat and various vitamins and minerals, which can be absorbed by human body interactively, prevent malnutrition, tonify middle energizer and replenish qi, and is beneficial to spleen and stomach weakness in middle energizer and malnutrition in children; 2. Relaxation: After the sweet potato is cooked, some starch changes. Compared with raw food, it can increase dietary fiber by about 40%, which can effectively stimulate intestinal peristalsis and promote defecation. When people cut sweet potatoes, they will see a white liquid oozing under the skin, which contains geniposide and can be used to treat habitual constipation. 3. Enhance immune function: Sweet potato contains a lot of mucin, which can prevent the atrophy of liver and kidney connective tissue, improve immunity and prevent collagen disease. The minerals contained in sweet potato play a very important role in maintaining and regulating human functions. The calcium and magnesium contained in it can prevent osteoporosis; 4. Anti-cancer and anti-cancer: Sweet potato contains an anti-cancer substance, which can prevent and treat colon cancer and breast cancer. In addition, sweet potato also has the function of scavenging active oxygen, which is one of the causes of cancer, so sweet potato has a very obvious effect on inhibiting the proliferation of cancer cells; 5. Anti-aging and prevention of arteriosclerosis: The anti-aging and prevention of arteriosclerosis of sweet potato are mainly caused by its water-removing active oxygen, and mucin contained in sweet potato can keep the elasticity of blood vessel wall and prevent the occurrence of atherosclerosis; Chlorogenic acid in sweet potato can inhibit the production of melanin and prevent the appearance of freckles and senile plaques. Red can also inhibit skin aging, maintain skin elasticity and slow down the aging process of the body. Supplementary information of sweet potato: 1. Sweet potatoes are mainly eaten with fat potatoes. The shape, size and flesh color of tuberous roots vary with varieties and cultivation conditions. Shapes are spindle, cylinder, sphere and block; Skin color is white, yellow, red, reddish, purple and other colors; Meat color can be divided into white, yellow, light yellow, orange red or purple halo. The outer layer of the root tuber is the epidermis containing anthocyanins, which is also commonly known as potato skin. Several layers of cells below the epidermis are cortex, and the inside is edible stele. After three years of research and selection, the World Health Organization (WHO) has selected six healthiest foods and ten junk foods. The healthiest foods selected include the best vegetables, the best fruits, the best meat, the best cooking oil, the best soup and the best brain-protecting food. The familiar sweet potato is listed as the champion of 13 best vegetables; 3. Sweet potato contains an oxidase, which easily produces a large amount of carbon dioxide gas in human gastrointestinal tract. Eating too much sweet potato will make people bloat, burp and fart. Sweet potato has a high sugar content. Eating too much will produce a lot of stomach acid, which makes people feel heartbroken. The stomach is stimulated by acid and its contraction is strengthened. At this point, the myocardium at the junction of stomach and esophagus is relaxed, and the acid in the stomach flows back to the feeding tube, so people spit acid water. Too much sugar can't be absorbed by the body for a while, and the rest will ferment in the intestines and make the stomach uncomfortable. Sweet potato is suitable for people: the general population can eat 1, and it is not advisable to eat too much at one time to avoid heartburn, sour water spitting and flatulence. 2, gastric ulcer, hyperacidity, diabetes is not edible. The dietotherapy function of sweet potato: sweet potato tuber is sweet, flat and slightly cool, and enters the spleen, stomach and intestine; Can tonify spleen and stomach, promote fluid production to quench thirst, relieve constipation, invigorate qi to promote fluid production, moisten lung and smooth intestine; The stems and leaves are sweet, light and slightly cool, and enter the lungs, large intestine and bladder meridian; Has effects in moistening lung and stomach, promoting diuresis, expelling pus, and removing putrefaction; Used for constipation due to intestinal dryness: some sweet potatoes, cooked, peeled and dipped in honey. Sweet potato food is similar: sweet potato should not be eaten with persimmon, tomato, liquor, crab and banana. Sweet potato and persimmon should not be eaten at the same time in a short time. If you eat a lot, you should be at least five hours apart. If eaten at the same time, the sugar in sweet potato will ferment in the stomach, which will increase the secretion of gastric acid and precipitate and condense with tannin and pectin in persimmon to produce lumps. When the amount is serious, it can cause gastrointestinal bleeding or gastric ulcer. Guidance on sweet potato practice: 1. Sweet potato contains "gasification enzyme", which sometimes causes heartburn, acid water spitting, flatulence, exhaust and other symptoms after eating. As long as you don't eat too much at a time, eating with rice noodles, pickles and soup can be avoided. 2. Rotten sweet potatoes (sweet potatoes with dark spots) and germinated sweet potatoes can make people toxic and inedible; 3. Eating cold sweet potatoes is easy to cause gastrointestinal discomfort; 4. There are many ways to eat, which can replace rice and flour as staple food; Fresh sweet potatoes are cooked and mashed, and mixed with rice flour and flour to make various cakes, jiaozi, steamed buns, jiaozi, cakes, etc. Dry powder can replace flour to make snacks such as cakes and puddings, and can also be processed into vermicelli; 5. Root vegetables such as sweet potato contain a lot of starch and can be processed into vermicelli, but alum is often added in the production process. Excessive consumption will lead to aluminum accumulation in the body, which is not good for the body.