摘要
以大豆磷脂为原料,考察了提取温度、提取时间、超声功率、料液比、乙醇体积分数和占空比对超声波辅助提取大豆磷脂酰胆碱(PC)的影响。结果表明:试验范围内综合考虑PC纯度和提取率的适宜工艺条件为:提取温度为20～40℃,提取时间为10 min,超声功率为600～800 W,料液比(g/mL)为1:6～1:8,乙醇体积分数为95%～100%,占空比(s:s)为1:1～5:1,在此试验范围内PC纯度可达75.387%,PC提取率可达22.594%。与传统搅拌提取法相比,超声波辅助提取法能缩短提取时间,并能提高PC纯度和提取率。
Effects of influencing factors on ultrasonic - assisted extraction of phosphatidylcholine（PC） from soybean phospholipids has been studied,the factors included extraction temperature,extraction time,ultrasonic power, ratio of sample to solvent,ethanol volume fraction,and on/off ratio.Results：Based on the consideration of both purity and yield of PC,the suitable extraction conditions in experimentation are extraction temperature 20～40℃,extraction time 10 min,ultrasonic power 600～800 W,ratio of sample to solvent 1：6～1：8（g/mL）,ethanol volume fraction 95%～100%,and on/off ratio 1：1～5：1（s：s）.With the experimental conditions the yield of PC can reach 22.594%,while the purity of PC can reach 75.387%.Compared with traditional stirring extraction,the ultrasonic -assisted extraction can shorten extraction time and improve the purity and yield of PC.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2010年第7期26-29,共4页
Journal of the Chinese Cereals and Oils Association
关键词
大豆磷脂酰胆碱
超声波辅助提取
大豆磷脂
phosphatidylcholine
ultrasonic - assisted extraction
soybean phospholipids
