shortcomings
The toxic substance contained in cassava is linseed picroside. If you ingest raw or uncooked cassava or drink its soup, it may cause poisoning. The reason is that flaxseed picroside or flaxseed picrosidase produces free hydrocyanic acid after gastric acid hydrolysis, which makes people poisoned. If a person eats 150 ~ 300 grams of raw cassava, it will cause poisoning and even death.
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The nitrogen content of cassava tuber is low, which is 1.5%-4%, of which about 50% is non-protein nitrogen, mainly nitrite and nitrate. In terms of amino acid composition, there are relatively more lysine and tryptophan, but less methionine and cystine. Cassava tuberous root has low crude fiber content (1%-2%), low fat content, high calcium and potassium content and low phosphorus content, and contains phytic acid and a small amount of vitamin C, vitamin A, vitamin B 1 and vitamin B2.
Extended data
Cassava originated in Brazil and is widely cultivated in tropical areas all over the world. China, Fujian, Taiwan Province, Guangdong, Hainan, Guangxi, Guizhou and Yunnan provinces are cultivated, and occasionally they are wild. Cassava tuber is rich in starch and is one of the raw materials of industrial starch. Because the root tuber contains cyanide toxin, it can only be eaten after bleaching and soaking. Cassava has been planted in China for 100 years. Usually the branches and leaves are light green or purplish red, and the former is less toxic.
People's Health Network-Cassava is poisonous. Can I add pearls to milk tea?
People's Health Network-cassava, laver and fresh fungus, three kinds of daily food are deadly poisons.
Baidu encyclopedia-cassava