【摘要】 探讨了从双低菜籽油脱臭馏出物中提取天然VE 的酯化工艺条件 ,依据正交实验确定了第一次酯化的最佳工艺参数为 :馏出物∶甲醇 (W/V) 10∶9,酯化温度 6 0℃ ,酯化时间 2h ;第二次酯化的最佳工艺参数为 :甘油酯∶甲醇 (摩尔比 ) 1∶6 ,催化剂用量 1.0 % ,酯化温度 4 5℃ ,酯化率98 9%。更多还原

【Abstract】 Natural vitamin E extraction from the double-low rapeseed oil deodorizer distillates with esterifying were investigated.The perpendicular experiment showed that the optimal conditions of the first esterifying were: the ratio of distillates to methanol 10∶9, 60℃and 2 h .The best conditions of the second esterifying were: the ratio of glyceride to methanol 1∶6,the amount of catalyzer 1.0% and 45℃.Under the optimal conditions,the esterification rate is 98.9%.更多还原