菜籽饼粕脱毒工艺参数的研究

以菜籽饼粕为研究对象，采用硫酸甲醇溶液为脱毒体系，确定了该法脱毒的最佳工艺参数：硫酸：甲醇：水=4％：90％：6％(体积比)的混合液为脱毒体系，与菜籽饼粕的混合比为8：1(mL／g)，室温下浸提30min。植酸提取率近90％，单宁提取率和硫代葡萄糖甙(简称硫甙)的去除率均超过80％，粕中硫甙的含量可降到2mg/g以下，满足饲料标准的要求；也达到了同时提取植酸和单宁的目的。

Study on the Technological Parameters of Rapeseed Meal Detoxification

Sulphuric acid and methyl alcohol solution as detoxification body,the detoxification of rapeseed meal was studied.The experiment results show that the optimum parameter are as following:H_2SO_4 volume content 4%,methy alcohol volume content 90%,water volume content 6%,the ratio of extracting solvent (mL) and rapeseed meal (g) 8 or so,room temperature and duration of extraction 30 minutes.Under the optimum conditions,the rate of removing phytic acid,tannin and glucosinate were 90%,80% and 80% or more respectively,and the glucosinate content in rapeseed meal may be reduced to 2 mg/g or less, which complied the demand of feed.The objection of extracting phytic acid and tannin were also achieved by the technique.