1977年世界棉籽产量为2668万吨,仅次于大豆占第二位的油料种子作物,榨过油的棉籽粕尚含有丰富的蛋白质,无疑是一个巨大的蛋白资源,以往曾因棉籽褐色腺体内含有棉酚素(Gossypol),限制了它的食用。近年利用棉籽提取棉酚用作男性避孕药获得成功,榨油工艺的改进等,这样将有利于开展棉籽粕的潜在价值。本文就采用双缩尿法测定棉籽粕中蛋白质的方法作一简介,以及棉籽粕中赖氨酸、 In 1977, the world’s cottonseed production was 26.68 million tons, second only to soybean oil as the second oilseed crop. The oilseed cottonseed meal is still rich in protein, which is undoubtedly a huge protein resource. In the past, cottonseed brown glands Contains gossypol, which limits its consumption. In recent years, the use of gossypol extraction of cottonseed as a male contraceptive success, oil extraction process improvement, etc., which will be conducive to the potential value of cottonseed meal. In this paper, double diuretic determination of cottonseed meal protein in a brief introduction, as well as cottonseed meal lysine,