摘要
对大豆油脱色过程中反式脂肪酸含量进行研究,通过单因素试验与响应面分析,对影响脱色的主要工艺参数进行了优化。得到低反式脂肪酸大豆油脱色的最佳工艺参数为:脱色温度97℃,脱色时间30 m in,脱色剂用量3.8%。在真空度0.095 MPa、搅拌速度220 r/m in条件下,按最佳工艺参数脱色,得到大豆油反式亚油酸含量为1.18%,脱色率达到96.57%。
The change of trans fatty acids content in bleaching process of soybean oil was studied. Based on the results of single - factor experiments and response surface analysis, the major parameters of bleach- ing were optimized. The best bleaching parameters of obtaining low trans fatty acids content soybean oil were determined as follows： bleaching temperature 97 ℃, bleaching time 30 rain, decolorant quantity 3.8%. Under the best parameters and vacuum degree 0. 095 MPa,stirring speed 220 r/min,the trans lin- oleic acid content in bleached soybean oil was 1.18% ,and the bleaching rate was 96.57%.
出处
《中国油脂》
CAS
CSCD
北大核心
2011年第8期12-15,共4页
China Oils and Fats
基金
黑龙江省科技攻关计划项目(GA09B401-3)
关键词
反式脂肪酸
大豆油
脱色
脱色率
trans fatty acids
soybean oil
bleaching
bleaching rate
