Solanine is contained in potato, and its toxic component is solanine (C45H73O 15N), also known as potato toxin, but its content is extremely low (0.005%-0.0 1%), which is not enough to cause poisoning. However, after potato germinates, the content of solanine in bud and bud eye can be as high as 0.3%-0.5%. Normal people can cause acute sprouting potato poisoning by eating 0.2-0.4 grams of solanine once.
Poisoning is manifested as follows: first, there is itching or burning sensation in throat, burning sensation or pain in upper abdomen, and then there are symptoms of gastroenteritis such as nausea, vomiting and diarrhea; Those who are deeply poisoned may suffer from dehydration, electrolyte disorder and blood pressure drop due to severe vomiting and diarrhea; In addition, it is often accompanied by dizziness, headache and mild disturbance of consciousness. In severe cases, coma, convulsions, and finally death due to heart failure and respiratory center paralysis.
Therefore, potatoes should not be used in large quantities. For potatoes with a little germination, go deep into the germination part and around the bud eye, then soak for more than half an hour, pour out the soaking water, add water and cook before eating. Because solanine is easy to decompose when it meets vinegar, you can add some vinegar when cooking to accelerate the destruction of solanine and become non-toxic.
Extended data
Precautions for eating potatoes:
1, even avoid eating skin.
Potato skin contains a toxic substance called solanine, which can cause acute poisoning if ingested in large quantities. This toxic substance is mostly concentrated in the skin, and red skin or purple skin is more than yellow skin. The number of people whose skin turns blue due to light increases with the depth of color. So when eating, you must peel it, especially the green peel, because even if potatoes are peeled after being cooked, about 10% of solanine in the skin may be transferred to the pulp. You should go to the hospital for treatment immediately after poisoning.
2, should not be excessive
When eating potatoes, you should also be careful not to eat a lot. Although potatoes are nutritious and delicious, they contain a lot of starch. If eaten in excess, it is likely to affect the digestion and absorption of the stomach and affect health.
People who are allergic to potatoes should not eat potatoes.
Potatoes may become allergens. If they are allergic to potatoes, eating potatoes may cause allergic symptoms such as redness, frequent diarrhea, indigestion, headache, sore throat and asthma. Therefore, such people should also avoid eating potatoes.
Reference: Baidu Encyclopedia: Potato