1, raw soybean milk.

Lethal toxin: saponin.

Fatal mechanism: When soybean milk is heated to about 80 "C, saponin expands when heated, and the foam floats up to form a" false boiling "phenomenon, which generally occurs after eating 0.5~ 1 hour, with gastroenteritis as the main symptom.

Detoxification method: heat it to 100C, and then cook it with low fire for about 10 minutes to achieve the purpose of safe eating.

2. Green beans.

Lethal toxin: saponin.

Fatal mechanism: Saponins in beans will strongly stimulate the digestive tract, and beans contain thrombin, which has a coagulation effect. Containing nitrite and trypsin, it can stimulate the human stomach, make people suffer from food poisoning and have symptoms of gastroenteritis.

Detoxification method: In order to prevent kidney bean poisoning, kidney bean must be cooked thoroughly.

3. cassava.

Fatal toxin: flax seed bitter past.

Fatal mechanism: the root tuber of Mushu is rich in starch, but all parts of the whole plant, including roots and leaves, contain toxic substances, and fresh root tuber is more toxic. Flaxseed picroside or flaxseed picrosidase is hydrolyzed by gastric acid to produce free hydrogen acid, which causes human poisoning.

Detoxification method: In order to prevent cassava poisoning, peel cassava before eating, and soak potato meat in clear water to dissolve cyanosides. Generally, soaking for about 6 days can remove 70% of cyanosides, then heating and cooking before eating.

4. Broad beans.

Fatal toxin: Nestin glycoside.

Fatal mechanism: Vicia faba seeds contain nestin glycoside, which can cause acute hemolytic anemia (Vicia faba yellow disease) after people eat it. Eating green broad beans in spring and summer, if cooked improperly, will often cause poisoning. And it usually happens 4 to 24 hours after eating raw broad beans.

Detoxification method: In order to prevent broad bean poisoning, it is best not to eat fresh and tender broad beans, and it must be cooked before eating.

5, day lily.

Lethal toxin: colchicine.

Fatal mechanism: After human body ingests colchicine, it will be oxidized in human tissues to produce colchicine. Colchicine is a highly toxic substance, which can poison human gastrointestinal tract and urinary system and seriously threaten health.

Detoxification method: In order to prevent the poisoning of fresh day lily, the fresh day lily can be boiled in boiling water for a while, then soaked in clear water to remove most of the water-soluble colchicine. You can also cook fresh daylily thoroughly before cooking.

6. shepherd's purse.

Fatal toxin: nitrite.

Fatal mechanism: wild vegetables such as shepherd's purse and grey vegetables in green vegetables all contain a lot of nitrite. If the human body ingests too much nitrite, the normal hemoglobin in the human body can be oxidized to methemoglobin. In addition, nitrite can also prevent oxygenated hemoglobin from releasing oxygen, thus causing tissue hypoxia and poisoning.

Detoxification method: eat fresh vegetables, cooked vegetables should not be hidden for a long time, and pickled vegetables should be washed after one month.