棉花是一种棉、粮、油三位一体的重要经济作物。它不仅为人们提供优质的纤维和食用油,而且种仁中含有丰富的蛋白质。长期来,由于棉仁的子叶和胚轴上布满红褐色的色素腺,其中含有棉酚(即棉毒素)。人、畜吃了含有棉毒素的棉籽油或棉仁粉后,使细胞、血管和神经中毒,引起组织发炎,心、肾、肝脏机能失调,同时还有抑制和杀死精于的作用。因此棉籽油必须经过精炼脱毒后才能食用,棉饼多数只能用作肥料,从而大大降低了棉花综合利用的经济价值,大量蛋白质被白白浪费。据1982年统计,我国棉籽饼产量 Cotton is an important cash crop of cotton, grain and oil. It not only provides people with high-quality fiber and cooking oil, but also rich in protein in kernels. For a long time, because cotton seed cotyledons and hypocotyls covered with reddish brown pigmented gland, which contains gossypol (ie cotton toxins). People and livestock eat cottonseed oil containing cottonseed oil or cottonseed meal, so that cells, blood vessels and nerve poisoning, causing tissue inflammation, heart, kidney and liver dysfunction, as well as inhibition and kill the role of good at. Therefore, cottonseed oil must be refined and detoxified before consumption, most cottonseed can only be used as fertilizer, thus greatly reducing the economic value of cotton utilization, a large number of protein wasted. According to the 1982 statistics, China’s cottonseed cake production