不同脱酚方法及其在不同pH条件下游离棉酚含量的比较研究  

Studies on removal of gossypol from cottonseed cake use physiochemical method and the free gossypol content in different pH

作　　者：王书云[1] 熊杜明[2] 刘良忠[1] 万菡[1] 周光朝[1] 

机构地区：[1]武汉工业学院食品科学与工程学院,湖北武汉430023 [2]华中农业大学食品科技学院,湖北武汉430070

出　　处：《武汉工业学院学报》2010年第2期14-17,共4页Journal of Wuhan Polytechnic University

摘　　要：探讨了硫酸亚铁、氢氧化钙、尿素、氢氧化钙和硫酸亚铁复合4种化学方法对棉粕的脱酚效果,以及采用化学方法脱毒后的棉粕,在不同pH下游离棉酚的含量变化。结果表明:采用4种化学方法脱毒处理后的棉粕,粕中游离棉酚(FG)的含量随棉粕pH的降低而大幅度升高,说明结合态的棉酚在酸性条件下重新生成了游离态的棉酚,表明采用上述4种化学方法脱毒处理的棉粕中的结合棉酚(BG)具有不稳定的性质。The paper Discuss as the degossypoling effects by using FeSO4,Ca（OH）2,H2NCONH2,Ca（OH）2 and FeSO4 Compounded from cottonseed cake,and the cottonseed cake which were deal with four chemical methods in the different pH values has different gossypol content.The results indicate：the degossypoling cottonseed cake dealt with by the four chemical methods,along with pH value reduction,the free gossypol（FG）increased significantly,and this showed the bound gossypol（BG）has become FG in the acid,and the BG in the degossypol cottonseed cake dealt with by these four chemical methods has unstable property.

关 键 词：棉粕 游离棉酚 毒性 恢复 

分 类 号：TS201.1[轻工技术与工程—食品科学]