棉子富含蛋白质和脂肪。据研究,棉子一般蛋白质含量在43％以上,脂肪含量在17—21.7％之间。全世界每年榨油后的棉仁粉有1,000多万吨,如能作食物或饲料,是一个重要的蛋白质资源。但是,在目前的棉花栽培品种中,棉子都有黑褐色色素腺,其内含有一种多元酚化合物,它与蛋白质结合时,可使蛋白质破坏和沉淀。这种多元酚化合物即棉毒素(又名棉酚、棉子醇)。棉毒素虽 Cotton is rich in protein and fat. According to research, cotton seed protein content in general more than 43%, fat content between 17-21.7%. More than 10 million tons of cottonseed meal are pressed annually in the world after being pressed. It is an important protein source for food and feed. However, in current cotton cultivars, the cotton seed has a dark brown pigmented gland that contains a polyphenol compound that, when combined with the protein, destroys and precipitates the protein. This polyphenol compound is cotton toxins (aka gossypol, cotton seed alcohol). Although cotton toxins