[efficacy and function of potatoes] how to eat potatoes

Potato is one of the common foods on the table of ordinary people. Potatoes are not only delicious and cheap, but also very nutritious. In particular, the contents of vitamin C, B vitamins, crude fiber and so on can be said to be relatively high. So what is the efficacy and function of potatoes?

The efficacy and function of potatoes

Potatoes can resist aging and keep the pace of the years.

Potatoes are nutritious and are anti-aging food. It is rich in B vitamins such as vitamin B1, B2, B6 and pantothenic acid, as well as a large amount of high-quality cellulose, as well as trace elements, amino acids, protein, fat and high-quality starch. People who often eat potatoes are in good health and grow old slowly.

Potatoes can lose weight.

You don't have to worry about excess fat when eating potatoes, because they contain only 0.1% fat, which is the lowest of all hunger foods. Eating more potatoes every day can reduce fat intake, allow the body to gradually metabolize excess fat, and eliminate your troubles. Potatoes have wonderful effects on the human body. Thin people can get fat when they eat, and fat people can get thinner when they eat. "often eating will make them slim.

Potatoes are a good beauty.

Potatoes can take good care of the skin and maintain the appearance. Fresh potato juice is applied directly to the face, and the whitening effect is very significant. People's skin is easy to be sunburned and tanned in hot summer. Potato juice has an obvious effect on removing color spots and has no side effects.

Potatoes also have a significant beauty effect on the skin around the eyes. Slice the cooked potatoes and stick them to the eyes to reduce the puffiness under the eyes. Cut potatoes into slices and apply them on your face, which has a good effect of beauty and skin care and reducing wrinkles. Young people have strong skin oil secretion and are often plagued by acne and acne. Smearing the affected area with cotton and fresh potato juice can solve this problem.

Potatoes can adjust the weak physique.

Potatoes not only do not make people fat, but also have the effects of healing, diuresis and spasmolysis. It can prevent and cure ecchymosis, neuralgia, arthritis, coronary heart disease and eye pain. Potatoes are rich in potassium, muscle weakness and loss of appetite, long-term use of diuretics or laxatives to eat more potatoes, can supplement the lack of potassium in the body. 3lian.com

Potatoes can eat a good character.

Potatoes contain vitamin C. Office workers living in modern society are most likely to be plagued by negative emotions such as depression, frustration and uneasiness. Tudou can help you solve this problem. Food can affect people's mood because the minerals and nutrients it contains can act on the human body and improve their mental state.

nutritive value

Potato, sweet potato, taro and other potato foods are rich in nutrients. They contain much higher protein and vitamin C, vitamin B1 and vitamin B2 than apples, and have high contents of calcium, phosphorus, magnesium and potassium, especially potassium. It can be said that it ranks first among vegetables. Potatoes contain a lot of high-quality cellulose, which can prevent constipation and cancer. So, how to eat potatoes to eat well?

First of all, to have a quantity guarantee, every day to eat potato foods (potatoes, sweet potatoes, taro) should be about 80 grams. The second is a good combination of meat and vegetarian. as long as it is well matched, you can enjoy good food and maintain a slim figure at the same time. When eating potatoes, the intake of staple food should be reduced accordingly, which can be controlled according to the ratio of potato to staple food 3 ∶ 1 4 ∶ 1. Eating about 80 grams of potatoes a day may help reduce the risk of stroke.

For more mashed potatoes and French fries in fast food, they are oxidized in the process of processing, destroying a lot of vitamin C and greatly reducing the nutrition. For French fries, it is easy to increase fat intake, and it is difficult to judge whether the oil of French fries is fresh, coupled with repeated high temperature heating to produce polymers, such as toxic cyclic monopolymers are carcinogens, so eat as little as possible.

Nutritionists point out that eating potatoes does not have to worry about excess fat, because it contains only 0 or 1% fat, which is the least of all hunger foods. Eating more potatoes every day can reduce fat intake and gradually metabolize excess fat.

Chemical composition

Root tuber contains alkaloid glycosides, and its aglycones are solanidine, leptinidine, tomatidine, acetylleptinidine, alkaloids, solanidine, α-chaconine, α-solanine and quercetin. It also contains carotenoids: violaxanthin, neoxanthin An and lutein. It contains essential amino acids: threonine, valine, leucine, isoleucine, phenylalanine, lysine, methionine and other amino acids. Root tuber also contains a variety of organic acids: citric acid (citric acid), malic acid (malic acid), quinic acid (quinic acid), succinic acid (succinic acid), fumaric acid (fumaric acid), oxalic acid (oxalic acid), decanoic acid (capric acid), lauric acid (lauric acid), myristic acid (myristic acid), abscisic acid (gibberellic acid), gibberellic acid (gibbere11ic acid). In addition, it also contains acrylamide (acrylamide) and plant lectin (lectin).

Pharmacological action

1. Inhibition of some enzymes: endogenous ATP enzyme inhibitor protein isolated from potato root mitochondria, which needs Mg2-ATP to inhibit F1-ATP enzyme. The IC50 of the isolated yeast strain F1 was 140 μ g (inhibitor) / mg (F1). This inhibitor also has a strong inhibitory effect on ATP enzyme of isolated yeast F1. The trypsin inhibitor isolated from potatoes with 100mg and 200mg per 100g of food reduced casein utilization and swollen pancreas in rats in a 28-day short-term trial, and produced dose-dependent pathological changes in the pancreas with nodular hyperplasia and acinar tumors in a long-term trial lasting 95 weeks. A protease inhibitor (POT Ⅱ) obtained from potatoes can increase the release of cholecystokinin (CCK), because endogenous CCK plays an important role in controlling food absorption, so the substance may play a role in reducing food absorption. In 11 men, 1.5g POT Ⅱ was added to high protein soup and given orally, which reduced energy absorption by 17.5%. The activity of proteolytic enzyme in skin wound of streptozotocin-induced diabetic rats increased and collagen biosynthesis decreased. The cathepsin D inhibitor obtained from potato can restore the proteolytic activity and accelerate the collagen biosynthesis.

Matters needing attention

Contains a toxic substance called alkaloids, the human body intake of large amounts of alkaloids, will cause poisoning, nausea, diarrhea and other reactions. The alkaloids in potatoes are steroid glycoside alkaloids, mainly solanum nigrum and caramelia. Its structure is similar to human steroid hormones, such as androgen, estrogen, progesterone and other sex hormones. According to foreign reports, the newly harvested potato alkaloids rose from 20mg / kg to 75mg / kg after storage for a period of time. The alkaloid content of germinated or moldy potatoes will further increase. The content of this toxic compound is higher in potato skins, so be sure to peel it when eating, especially if it has turned green. In addition, sprouted potatoes are more poisonous. When eating, the buds and roots must be dug up and soaked in clean water. Stew should be heated.

Pharmacological action

1. Inhibition of some enzymes: endogenous ATP enzyme inhibitor protein isolated from potato root mitochondria, which needs Mg2-ATP to inhibit F1-ATP enzyme. The IC50 of the isolated yeast strain F1 was 140 μ g (inhibitor) / mg (F1). This inhibitor also has a strong inhibitory effect on ATP enzyme of isolated yeast F1. The trypsin inhibitor isolated from potatoes with 100mg and 200mg per 100g of food reduced casein utilization and swollen pancreas in rats in a 28-day short-term trial, and produced dose-dependent pathological changes in the pancreas with nodular hyperplasia and acinar tumors in a long-term trial lasting 95 weeks. A protease inhibitor (POT Ⅱ) obtained from potatoes can increase the release of cholecystokinin (CCK), because endogenous CCK plays an important role in controlling food absorption, so the substance may play a role in reducing food absorption. In 11 men, 1.5g POT Ⅱ was added to high protein soup and given orally, which reduced energy absorption by 17.5%. The activity of proteolytic enzyme in skin wound of streptozotocin-induced diabetic rats increased and collagen biosynthesis decreased. The cathepsin D inhibitor obtained from potato can restore the proteolytic activity and accelerate the collagen biosynthesis.

Matters needing attention

Contains a toxic substance called alkaloids, the human body intake of large amounts of alkaloids, will cause poisoning, nausea, diarrhea and other reactions. The alkaloids in potatoes are steroid glycoside alkaloids, mainly solanum nigrum and caramelia. Its structure is similar to human steroid hormones, such as androgen, estrogen, progesterone and other sex hormones. According to foreign reports, the newly harvested potato alkaloids rose from 20mg / kg to 75mg / kg after storage for a period of time. The alkaloid content of germinated or moldy potatoes will further increase. The content of this toxic compound is higher in potato skins, so be sure to peel it when eating, especially if it has turned green. In addition, sprouted potatoes are more poisonous. When eating, the buds and roots must be dug up and soaked in clean water. Stew should be heated.