What substances are formed when potatoes are sprouted?

When potatoes sprout, they form solanine toxins.

Solanthus toxin mainly causes gastrointestinal damage, paralysis of the respiratory center and motor center by inhibiting the activity of cholinesterase, and can also cause cerebral edema and gastroenteritis.

If the germination is mild, remove the sprouted and greened parts before eating and soak in water for 2 hours to remove most of the toxins. At the same time, acetic acid can neutralize solanine toxins, and adding an appropriate amount of vinegar when cooking potatoes can reach the range of safe consumption.

Potatoes are contraindicated for consumption.

1. Spleen and stomach deficiency and cold should avoid eating too much.

Potatoes have a downward effect, and those with spleen and stomach deficiency and cold and diarrhea should eat less or no food.

2. Pregnant women should avoid eating.

Pregnant women often consume potatoes with high solanine content, which may lead to fetal malformations due to accumulation in the body, so it is better to eat less. Pregnant women, in particular, should not eat sprouted potatoes that have been stored for a long time to prevent miscarriage due to poisoning.

3. Do not freeze.

Potatoes should be stored in a cool place, not exposed to the sun, not frozen, frostbitten potatoes should not be eaten.

4. Avoid eating with the skin.

Potatoes contain a toxic substance called solanine, which can cause acute poisoning if ingested in large amounts. This toxic substance is mostly concentrated in its skin, red or purple skin is more than yellow skin, and the light makes the skin color blue and increases with the depth of color, so it is necessary to peel it when eating, especially to peel off the skin that has turned green, because even if the potato is peeled after the skin is cooked, it may transfer about 10% of the solanine in the skin to the pulp.

The above content reference: People's Daily Online - Will sprouted potatoes be poisoned?

The above content reference: People's Daily Online-Pay attention to four taboos when eating potatoes.

Potatoes sprouted and can't be eaten! But there are three substances that can be eaten with confidence when sprouted, and the nutritional value is doubled!

Because potatoes are tubers, they will of course sprout when exposed to the right temperature and humidity.

Potato sprouting produces a toxin called solanine, also known as solanine. The potatoes contain only 10 mg of solanine per 100 grams, while the solanine in green, sprouted, and rotten potatoes can increase by 50 times or more. Eating a very small amount of solanine may not be obvious to the human body, but if you eat 200 mg of solanine at a time (about half a tael of potatoes that have turned green and sprouted), you can get sick after 15 minutes to 3 hours.

The first symptoms are itching in the mouth and throat, pain in the upper abdomen, nausea, vomiting, diarrhea and other symptoms.

Potatoes have to go through a considerable amount of time to sprout. The length of this period is called the "dormant period". The length of the dormancy period is closely related to the species and storage conditions.

Some varieties have a dormancy period of up to one month, while others have a dormancy period of only one month, and even newly harvested tubers can germinate, which is determined by the genetic characteristics of the variety.

Potato germination is highly correlated with increased solanine content, which is then synthesized in situ under the influence of light. Solanine is most abundant in potatoes with long sprouts. Generally speaking, potatoes that have little sprout are still edible if they are thoroughly removed from the sprouts and the part around the sprout eyes.

If there are a lot of sprouted parts, they should be thrown away.

Why do potatoes sprout? Can sprouted potatoes still be eaten? Quite a few people misunderstand.

Potatoes are generally sprouted because they have passed their dormant period and are starting to grow normally. After harvesting, potatoes generally need to germinate after a period of time, and this period is called "dormant period", the length of the dormant period is closely related to potato varieties and storage conditions, some varieties have a dormant period of up to 4-5 months, and some varieties have a dormant period of only about 1 month, and even just harvest can germinate, which is determined by the genetic characteristics of potato varieties.

Generally speaking, potatoes with very little sprouts are still edible if the part around the sprouts and sprout eyes is thoroughly dug out and the green part is removed. If the potatoes have a large area of green and many sprouted parts, they should be thrown away. After cutting the potatoes, it is best to soak them in water for a while and pour some vinegar when cooking to avoid poisoning.

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Why do potatoes sprout?

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From the Sesame Group of Science and Education 2017-12-16

After harvesting, potatoes have a physiological dormancy period of 2 to 3 months, when metabolic processes are weakened, resistance increases, and they do not germinate even when environmental conditions are suitable. After the end of the dormancy period, when the conditions are suitable, the respiration and hydrolysis of potatoes will be greatly enhanced, and a part of the hydrolysate will be transferred to the growth point and consumed for germination growth.

In the north, potatoes are mostly piled up in cellars, and rice is piled high, and generally not piled up. When the temperature in the cellar is higher than 5 and the humidity is greater than 85, the potatoes are easy to sprout. Potato germination mostly occurs in March and April, when the cellar temperature is easily affected by the external high temperature and rises, so it is necessary to strictly control the influence of external temperature to prolong the forced dormancy period of potatoes.

The method is to close the cellar door during the day to prevent hot air from entering the cellar, and strengthen ventilation or pile up heat dissipation at night, so that the cellar temperature is kept at 1 3 and the humidity is 80 85.

In order to prevent potatoes from sprouting, methyl naphthalene acetate and cyanosine can be treated. The method is that per 10,000 catties of potatoes, 150 grams of methyl naphthalene acetate with a content of 98 are dissolved in 300 grams of acetone, and then mixed with 20 30 catties of fine soil, evenly sprinkled in the pile of potatoes in the cellar, and the germination effect is inhibited by 90.

After the potatoes are harvested, there is usually a dormant period of two to three months. After the dormancy period, if all conditions are right, the surface of the potatoes will sprout.

Of course, the length of the dormancy period of potatoes is directly related to the variety of potatoes and how they are stored.

We can store the potatoes we bought in a black plastic bag, which will block the light of the potatoes and prevent them from sprouting. If you don't have a black plastic bag at home, you can also put the potatoes in a cardboard box, and then put an apple, the ethylene released by the apple can well inhibit the phenomenon of potato germination.

Precautions: Potatoes are easy to sprout in a suitable environment, and the mold at the germination site will evolve into solanine. Solanine is a harmful substance, which can cause vomiting or diarrhea after we eat it, so potatoes are inedible once they sprout.

However, theoretically, if the potatoes only have a little sprout, you can clean the sprouts, peel them and eat them as deep as possible.

However, if it is not operated properly, it is likely to leave toxins, so it is better to clean it up carefully, and it is better to throw it away if everyone is troublesome. In addition, if the potatoes have more sprouts, then don't hesitate to throw them away, such potatoes have more toxins and almost no nutrients.