【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%。更多还原

【Abstract】 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 bleaching 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 min,decolorant quantity 3.8%.Under the best parameters and vacuum degree 0.095 MPa,stirring speed 220 r/min,the trans linoleic acid content in bleached soybean oil was 1.18%,and the bleaching rate was 96.57%.更多还原