酯化条件对脱臭馏出物中维生素E含量的影响  

Effect of esterification conditions on the vitamin E of the oil deodorizer distillate

作　　者：曹智[1] 

机构地区：[1]西南大学化学化工学院,重庆400715

出　　处：《中国油脂》2010年第6期45-47,共3页China Oils and Fats

摘　　要：以油脂脱臭馏出物为原料,采用酸碱酯化工艺提取其中的维生素E,探讨了不同酯化条件下产物中维生素E含量及酸值的变化情况。通过单因素实验和正交实验确定最佳酯化工艺条件为:硫酸溶液质量浓度0.025 g/mL,碱液质量浓度0.008 g/mL,碱酯化前物料水分含量0.6%,碱酯化时间3 h。在此条件下,产物中维生素E含量为6.26%,酸值(KOH)由96.42 mg/g降至3 mg/g。The vitamin E was extracted from oils deodorizer distillate by acid-alkali esterification technology.The effects of esterification conditions on the vitamin E content and acid value were studied.The optimal esterification conditions were determined by single factor and orthogonal experiments as follows：mass concentration of sulfuric acid 0.025 g/mL,alkali mass concentration 0.008 g/mL,moisture content of the material used to alkali esterification 0.6%,alkali esterification time 3 h.Under the optimal conditions,the vitamin E content was 6.26% and the acid value was reduced to 3 mgKOH/g from 96.42 mgKOH/g.

关 键 词：脱臭馏出物 维生素E 酯化 

分 类 号：TS229[轻工技术与工程—粮食、油脂及植物蛋白工程]