氰化物是一种剧毒的物质。在农村中,容易引起中毒的含氰植物有苦杏仁、木薯、苦桃仁、枇杷仁等。中毒原因含氰植物引起中毒,是因为含有氢氰酸的缘故。氢氰酸在植物中以糖甙的形式存在,如苦杏仁、苦桃仁含苦杏仁甙,木薯含亚麻配醣体等。人吃了含氰植物后,其中的苦杏仁甙或亚麻配醣体能被植物中同时存在的苦杏仁甙酶或亚麻配醣体酶水解,分解出氢氰酸。如100克苦杏仁能分解出氢氰酸约100～250 Cyanide is a highly toxic substance. In the countryside, cyanobacteria that cause poisoning are bitter almonds, cassava, bitter peach, and loquat kernels. Cyanosis poisoning causes poisoning, because of the reason it contains hydrocyanic acid. Hydrocyanic acid in the form of glycosides in plants, such as bitter almonds, bitter peach kernel containing amygdalin, cassava containing flax with glycosides. After eating cyanide-containing plants, the amygdalin or flax glycoside in them can be hydrolyzed by amygdalin or flax glycoside enzymes in the plant to decompose hydrocyanic acid. Such as 100 grams of bitter almond can break down hydrocyanic acid about 100 ~ 250