Can potatoes be eaten when they turn green?

In potato tubers, solanine itself is mainly concentrated in the epidermis. If potatoes turn green seriously and go deep inside, it is best not to eat them. For some green potatoes, we can cut off all the green parts before eating them.

If it turns green, it is chlorophyll, not solanine, but what we see is that turning green is highly related to the increase of solanine content, and part of its synthesis is influenced by light and then synthesized in situ. "That is to say, when buying potatoes, it is best not to buy green potatoes, and when storing potatoes, we should also pay attention to avoiding light.

Extended Information Potatoes Fresh potatoes (tubers) can be cooked into food or vegetables. However, fresh potato tubers are bulky and have high water content, so it is difficult to transport and store them for a long time. For this reason, countries all over the world attach great importance to the production of potato processed foods, such as French frozen French fries, potato chips, potato instant powder, potato starch and various cakes and egg rolls, reaching more than 100. Fresh potato stems and leaves can be used as feed through silage, but it contains solanine, which should be prevented from causing livestock poisoning. In some areas of China, potato stems and leaves are used as green manure, and their fertilizer efficiency is similar to that of Chinese milk vetch.

Potato tuber is rich in dietary fiber and potassium salt, which belongs to alkaline food. According to some data, its content is as much as that of apples. So the gastrointestinal tract absorbs potatoes slowly. After eating potatoes, you stay in the intestines for much longer than rice, so you are fuller, and you can also help take away some oil and garbage, which has a certain laxative and detoxification effect.

In addition, potato tubers also contain carotene and ascorbic acid that are not found in cereals. From the nutritional point of view, it has more advantages than rice and flour, and can supply a lot of heat energy to the human body, so it can be called "perfect food". If people only rely on potatoes and whole milk, it is enough to maintain life and health. Because the nutritional components of potatoes are very comprehensive and the nutritional structure is reasonable, but the contents of protein, calcium and vitamin A are slightly lower; And this is just a supplement to whole milk.

References:

Baidu encyclopedia-potato