【摘要】 提出了制备高磷脂酰胆碱 (PC)含量的大豆磷脂的新工艺。用异丙醇作溶剂 ,通过正交实验得出优化的分离条件为 :抽提时间 5min ;抽提温度 - 5℃ ;m(磷脂 )∶m(异丙醇 ) =12∶15 7;异丙醇的体积分数 φ(异丙醇 )≈ 10 0 % ;HPLC分析结果表明 ,抽提后产品中PC的含量可以从原料中的w(PC) =2 5 6 %提高到w(PC) =6 6 8%。收率为 2 2 4%。更多还原

【Abstract】 A new separation process was developed for fractionation of soya lecithin with high phosphatidylcholine(PC) content using isopropanol.The optimal conditions were determined by orthogonal design.The extraction time is 5 min,extraction temperature is -5 ℃,m(phospholipids)∶ m (solvent)=12∶157 and the concentration of isopropanol is 100%.Under the optimal conditions,the PC content of soya lecithin was increased from 25 6% to 66 8%.更多还原