高度乙酰化大豆磷脂的制备工艺研究  

Study on preparation of high-purity acetylation soybean phosphatide

作　　者：李红玲[1] 常云鹤[1] 周晓丹[1] 王妍[1] 于殿宇[1] 

机构地区：[1]东北农业大学食品学院,黑龙江哈尔滨150030

出　　处：《食品工业科技》2011年第1期210-212,共3页Science and Technology of Food Industry

基　　金：黑龙江省科技攻关计划项目(GA09B401-3);国家科技支撑计划(2009BADB9B08)

摘　　要：采取萃取的方法制得高纯度大豆浓缩磷脂,再通过乙酰化的方法对其进行改性研究,最佳工艺条件为:正己烷1.5mL/g,乙醇1mL/g,乙酸酐用量3%,温度60～70℃,时间40min,pH7.0,搅拌速度30r/min,得高度乙酰化磷脂,其丙酮不溶物含量56%,水分0.75%,酸价35mg/g,粘度2900mPa.s(25℃),氨基氮含量1.0mg/g。The high-purity phospholipid concentrate was extracted, and then it was modified by the method of acetylation.The extraction conditions were n-hexane amount 1.5mL/g, absolute ethanol amount 1mL/g, acetic anhydride at the addition amount 3% ,and then stirring the mixed system by the speed of 30r/min at 60-70℃ and pH 7.0 for 40min. The acetone insoluble substance, moisture plus volatile substance, acid value, viscosity and aminonitrogen amount of the obtained high- purity acetylation modified phosphatide product under the above conditions were 56% ,0.75% ,35mg/g,2900mPa·s（25℃）and 1.0mg/g.

关 键 词：浓缩磷脂 高纯度透明磷脂 乙酰化 高度酰化磷脂 

分 类 号：TS201.1[轻工技术与工程—食品科学]