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近几年,粮食在膳食中所占比重有所下降,但就目前而言,粮食仍是我国人民主要食物。因此某些粮食中含有一些特殊化学成分仍应引起人们的警惕。它们有的是有毒物质,人食用过量会引起中毒;有的能影响人体对食物的消化吸收;有的能影响食物的风味和品质。例如棉籽中的棉酚,菜籽中的芥子甙,大豆中的胰蛋白酶抑制素,蚕豆中的巢菜碱甙,马铃薯中的龙葵素,木薯中的木薯甙,高梁中的丹宁等。一、棉酚棉籽是棉花的种子。普通棉籽中含棉酚0.15～1.8%,主要分
In recent years, the share of food in the diet has decreased, but for the moment, food is still the main food for our people. Therefore, some foods contain some special chemical ingredients should cause people’s vigilance. Some of them are toxic substances, human consumption can cause poisoning; some can affect the body’s digestion and absorption of food; some can affect the flavor and quality of food. Such as gossypol in cottonseed, glucosinolate in rapeseed, trypsin in soybean, vetiverin in broad bean, solanine in potato, cassava in cassava, tannin in sorghum and the like. First, gossypol cottonseed is the seed of cotton. Cottonseed contains cotton gossypol 0.15 to 1.8%, the main points