Sweet potato

　　Sweet-hearted sweet potato jerky

　　Sweet potatoes originate from green products in hilly areas of the foothills of Taihang Mountains. They are planted in non-polluted red sandy soil. They refuse to use chemical fertilizers and organic fertilizers. Cooperatives with professional teams have unified large-scale planting management. Planting after grain rain and harvesting after frost fall have the characteristics of long growth cycle （spanning nearly three seasons）， abundant sunshine and adequate nutrient absorption.

　　Harvest sweet potatoes and make dried sweet potatoes. Factory scale production, closed cooking after the production of sweet potato dried, low temperature natural drying, effectively lock the nutritional ingredients. It has the characteristics of low calorie, low fat, high sweetness and toughness. Sweet potato dried in the process of production, do not add any substances, is worthy of the "pure natural, no added" food.

　　Bulk dried sweet potatoes taste sweeter than independently packaged dried sweet potatoes, which are often processed in factories when sweet potatoes are just ripe, and starch has not yet been fully converted into sugar. The dry bulk sweet potatoes have a longer drying time and a sweeter taste.

　　Sweet potatoes contain only 0.2 grams of fat per 100 grams of dried sweet potatoes. Sweet potatoes also contain balanced nutrients. For example, vitamin A, B, C, cellulose, potassium, iron, copper and more than 10 trace elements, of which cellulose can play a good role in stimulating intestinal peristalsis and promoting smooth excretion. At the same time, because the fiber structure can not be absorbed in the intestinal tract, it has the special function of blocking sugar into fat. Especially rich in lysine, and we usually eat rice, flour is exactly lack of lysine. Nutritionists call sweet potatoes the most nutritionally balanced health food.

　　Appendix:

　　Function and efficacy of sweet potato

　　1. Blood tonic: Nutrition is very rich, contains a lot of sugar, vitamins and minerals, can be effectively absorbed by the human body, prevention and treatment of malnutrition, and can supplement the Qi, spleen and stomach deficiency, children's chancre and other diseases.

　　2. Wide intestine and defecation: After cooking, some starch changes. Compared with before cooking, it can increase about 40% of food fiber, which can effectively stimulate intestinal peristalsis and promote defecation. Sweet potato skin exudates a white liquid containing Jasmine glycoside, which can be used to treat habitual constipation.

　　3. Enhance immune function: It contains a lot of mucin, which can prevent the atrophy of connective tissue in liver and kidney, improve the immunity of the body and prevent the occurrence of collagen disease. Minerals play an important role in maintaining and regulating human functions. Calcium and magnesium can prevent osteoporosis.

　　4. Anti-cancer and anti-cancer: It contains an anti-cancer substance, which can prevent and treat colon cancer and breast cancer. In addition, it also has the effect of eliminating reactive oxygen species, which is one of the causes of cancer. Therefore, the effect of inhibiting the proliferation of cancer cells is very obvious.

　　5. Anti-aging and prevention of atherosclerosis: anti-aging and prevention of atherosclerosis effect, mainly its water is produced by reactive oxygen species. Mucous protein in sweet potato can maintain the elasticity of vascular wall and prevent the occurrence of atherosclerosis; chlorogenic acid in it can inhibit the production of melanin and prevent the occurrence of freckles and senile plaques. Digua can also inhibit skin aging, maintain skin elasticity and slow down the aging process of the body.

　　Common Knowledge of Sweet Potato Food

　　1. Don't eat too much at one time. Don't eat on an empty stomach. It contains an oxidase, which easily produces a large amount of carbon dioxide gas in the human gastrointestinal tract. If you eat too much at one time, it will cause abdominal distension. In addition, fasting consumption will stimulate the secretion of gastric acid, making people feel "heartburn".

　　2. The disadvantage is lack of protein and fat, but today people are well-off. Sweet potatoes are no longer the staple food. The nutrients it lacks can be completely supplemented by other diets. So it is the most scientific way to eat sweet potato chips after each meal.

　　3. Should not be eaten with dried persimmon: if eaten at the same time, sugar fermentation in the stomach, will increase gastric acid secretion, and persimmon tannin, pectin reaction precipitation condensation, will make the stomach feel uncomfortable.

　　With the progress of science and technology, sweet potato products emerge in an endless stream. Among them, the most popular is edible sweet potato dried. After cleaning, cooking, the sun will become soft, fragrant, sweet, endless dried potatoes. More rare, potato dried in the process of production, without adding any substances, is a well-deserved "pure natural, no added" food.