Efficacy and nutritional value of potatoes. Potatoes are one of the five staple foods in China, with high nutritional value, strong adaptability and large output. Potatoes are easy to eat, and their nutritional value is very high. Let's share the efficacy and nutritional value of potatoes.
Efficacy and nutritional value of potatoes 1 nutritional value of potatoes
1, potatoes contain a lot of starch, which is the main energy source of edible potatoes. Generally, early-maturing potatoes contain11~14% starch, middle and late-maturing potatoes contain14 ~ 20% starch, and the tuber of high-starch varieties can reach more than 25%.
2. The protein content of potato is very high, and its stem block contains about 2% protein, which is equivalent to protein of eggs in quality, easy to digest and absorb, and superior to protein of other crops. Moreover, the protein of potato contains 18 kinds of amino acids, including various essential amino acids that the human body cannot synthesize.
3. Potato tuber contains a variety of vitamins and inorganic salts, including vitamin C, which can prevent scurvy and stimulate hematopoietic function, and vitamin A, vitamin B 1, vitamin B2, vitamin pp, vitamin E, vitamin B3, vitamin B6, vitamin M and biotin H are all beneficial to human health.
4. Potato tuber is rich in dietary fiber and potassium salt, which belongs to alkaline food. Data show that its content is as much as that of apple. Therefore, the gastrointestinal tract absorbs potatoes slowly. After eating potatoes, it stays in the intestines for much longer than rice, so it is more full, and it can also help take away some oil and garbage, which has a certain laxative and detoxification effect.
Edible efficacy of potatoes
1, supplementary nutrition: potatoes are rich in vitamins and trace elements such as calcium and potassium, which are easy to digest and absorb. They are rich in nutrients and can supply a lot of heat energy to the human body. People only rely on potatoes and whole milk to maintain their lives and health. In Europe and America, especially in North America, potatoes have long been the second staple food.
2, and nourishing the stomach: the tender cellulose contained in potatoes has no stimulating effect on gastrointestinal mucosa, and has the effect of relieving pain or reducing gastric acid secretion. Eating potatoes regularly has the functions of regulating stomach, regulating middle energizer, invigorating spleen and benefiting qi, which can promote the digestive function of the spleen and stomach, and also has therapeutic effects on gastric ulcer, hot cough and skin eczema, and can also prevent colon cancer.
3. Protecting blood vessels: Potatoes can supply a large amount of mucin with special protective function to human body, which can promote the lubrication of digestive tract, respiratory tract, joint cavity and serosa cavity, prevent the fat deposition of cardiovascular system, maintain the elasticity of blood vessels, and help prevent the occurrence of atherosclerosis.
4. Anti-aging: Potato is a famous anti-aging food, which is rich in B vitamins such as vitamin B 1, B2, B6 and pantothenic acid, and a lot of high-quality cellulose. It also contains nutrients such as trace elements, amino acids, protein, fat and high-quality starch. People who often eat potatoes are healthy and slow to age.
5. Weight-reducing effect: Potato is a food rich in dietary fiber, which is relatively rare and contains a lot of vitamins and minerals at the same time. The heat produced per148g of potato is only 100 calories, and the real starch content is less than 2%, only containing 0. 1% fat, which can effectively control the total fat intake in people's daily diet.
6, beauty and skin care: potatoes have a good effect of caring for the skin and maintaining the face. The direct application of fresh potato juice on the face has a very significant whitening effect. People's skin is easy to get sunburned and tanned in hot summer, which has an obvious effect on removing spots without side effects, and also has a significant beauty effect on the skin around the eyes.
The efficacy and nutritional value of potatoes 2 How to store potatoes? Storage method of potatoes
Potato is a vegetable with both grain and vegetable functions. The scientific name of potato, together with rice, wheat, corn and sorghum, is called the five major crops in the world. In France, potatoes are called "underground apples". Potato brand has complete nutrients and is easy to be digested and absorbed by human body, and enjoys the title of "second bread" in Europe and America.
Winter potatoes are a common dish at home, and many people like to buy some and store them at home for daily consumption. Although compared with green leafy vegetables, potatoes will not wither and rot for a period of time, but they will germinate, deteriorate and even produce toxins if they are not stored well.
Preservation method of potatoes
1, bag storage: if you eat 50-100 kilograms of potatoes in winter, it is more suitable for people who live in buildings. Put the potatoes in plastic bags and put10 cm moist black soil in the mouth of the bags, which is not dry, fresh and not spicy.
2. Box storage: Box storage is suitable for cities. Sit a cardboard box or a large wooden box in the corner, put wood or bricks with a height of15cm on the bottom of the box to prevent the bottom of the box from being wet, put potatoes in the box, and cover it with moist black soil with a thickness of15cm to keep it fresh, non-spicy and slow to sprout.
3. Outdoor storage: dig a 2.3-meter-deep cellar outdoors, with the length and width determined according to the storage quantity, pad the bottom of the cellar with 2-cm-thick ash, disinfect it, remove the soil odor in the cellar, secure the cellar cover, keep the cellar door, and put the potatoes into the cellar.
In late October of 10, potatoes are covered with moist black soil with a thickness of 15 cm, so as to keep moisture and avoid freezing. If the cellar is shallow, the damp black soil is covered with a thickness of 20-30 cm, and it is difficult to seal the cellar door early. In early October of1/kloc-0, half of the cellar cover is left for ventilation. If the temperature in the cellar is high, it is easy to rot, and if the temperature is low, it is easy to freeze.1early February will be completely sealed. Therefore, it is crucial to master the temperature.
4. Indoor storage: potatoes are stored indoors, regardless of the size of the cellar, and the potatoes are covered with 3-5 cm of moist black soil, so as to keep moisture, and potatoes are not easy to germinate in spring if they are not dried or frozen.
5. Warehouse storage: I am not used to digging pits or digging pits for water. According to the storage capacity, I can build a blank or brick warehouse in the corner, and the inside and outside of the warehouse should be plastered with mud to prevent potatoes from being exposed to cold wind and freezing due to indoor cold. Put the potatoes in the warehouse and cover them with 5 cm of moist black soil to make them fresh and not wither.
Tips for storing potatoes
1, put an apple in the bag for storing potatoes, and then tie the mouth of the bag tightly (for example, the typhoon fruit sold in summer-the green apple blown off by the typhoon), and then tie the mouth of the bag tightly.
2. Tie it up with a fresh-keeping bag and isolate it from the air, which can prevent it from drying, rotting and sprouting.
3, potatoes are afraid of freezing and should be placed in cartons, away from cold places.
Ordinary families should do the following "six taboos" when storing potatoes:
1, avoid excessive water: stop watering 7 days before harvest to reduce water content and promote potato skin aging, so as to facilitate early dormancy and reduce diseases.
2, avoid exposure: some people expose themselves to the sun in order to dry the skin, and as a result, the fruits that like to cool are spoiled and moldy or the potato skin turns green and cannot be eaten. The correct way is to put it in a shady and ventilated place to dry. Finally, the potatoes should be packed in ventilated bags and put in a dry place.
3, avoid humidity: potatoes are fresh vegetables, too much humidity, poor ventilation will be moldy. It should be placed on the sand in the corner.
4, avoid high temperature: too high temperature potatoes will sprout or rot, too low temperature potatoes are easy to frostbite and can not be eaten. Therefore, potatoes should not be piled up in large piles, so that potatoes can breathe, and attention should be paid to strict selection before storage to remove sick, rotten, injured and pockmarked and damp bad potato pieces.
5, avoid mixed living: generally other fresh vegetables are easy to mildew, potatoes should not be put together with these dishes.
6. Don't put it with sweet potatoes: potatoes can't be stored with sweet potatoes. Otherwise, either the sweet potato is stiff or the potato is sprouting.
Efficacy and Nutritional Value of Potatoes 3 Benefits of Eating Potatoes
1, eating potatoes can adjust the mood.
The vitamin C content in potatoes is very high. If you are prone to depression, negativity and grumpiness at work, please eat more potatoes. Maybe you won't believe it. Potatoes can relieve your depressed and upset negative emotions. In fact, potatoes can change your bad emotions because the minerals and some nutrients contained in potatoes can produce some substances that affect the body after being absorbed by the human body, thus changing people's emotions.
2, potatoes can lose weight
Many people think that eating potatoes will make you fat, but it is not. Eating potatoes correctly can also help you lose weight. If the content of vitamins A and C in human body is insufficient, or if you eat too much acidic food, you will do things in an anticlimactic way. Eating potatoes can help you solve this problem, and it can also reconcile the food acid-base imbalance caused by excessive meat consumption when the human body is full of nutrition.
3. Eat potatoes to improve memory
Potatoes are rich in protein and vitamin B, which can make people strong, prevent memory loss and make their minds clear. In hot summer, if your appetite is not strong, eating potatoes for a few days will also have unexpected effects.
In addition, potatoes can also cure diseases such as pigmentation, neuralgia, coronary heart disease and eye pain. If you often feel tired, have no appetite or drink diuretics for a long time, you can eat more potatoes, because the potassium in potatoes is considerable, and these symptoms are also due to the lack of potassium in the body.
Finally, two common ways to eat potatoes are recommended: vegetarian fried shredded potatoes and fresh ground potatoes.
The folk practice of vegetarian fried shredded potatoes is to put a lot of oil in the pot and then pour in shredded potatoes, otherwise it will stick to the pot if there is not much oil. In order to save oil, but also for our health, we can boil shredded potatoes in boiling water for a few minutes, then control the water and put it on a plate for later use. Light the oil, add onion and ginger, and then pour shredded potatoes, shredded peppers and shredded carrots into the pot.
Then add a little vinegar, salt and chicken essence to stir fry. This improved version of vegetable fried potato shreds not only consumes less oil, but also is very delicious and colorful, giving people an appetite.
The common practice of radix rehmanniae is to ignite the pot, pour enough cooking oil, pour potatoes after the oil temperature comes up, and when the potatoes are almost transparent, control the oil and remove them; Then add the eggplant, when the color turns golden, pour the green pepper into the pot, and then control the oil and take it out together; Then pour the hot oil in the pot into an empty bowl, and at the same time leave a proper amount of oil in the pot, add chopped green onion and minced garlic, then add broth, salt, sugar, soy sauce, eggplant, potatoes and green peppers, stir-fry and add water starch to thicken.
This dish belongs to Shandong cuisine. Although it is delicious, almost all the nutrients in the vegetables are lost, and this dish contains too much oil, which will be unhealthy for people to eat, so this cooking method is not recommended.