摘要
选取乙酸乙酯∶乙醇为1∶1(体积比)的80%水溶液作为提取溶剂,对影响塔拉单宁超声波辅助极性分离的关键因素进行了研究。研究结果表明,塔拉单宁超声波辅助极性分离的最佳条件为:提取温度40℃,提取时间25 min,超声频率36 KHz,在此条件下得到的分离产物的抗氧化性和总酚含量提高,分子量降低,溶剂回收率在80%以上。
This paper studied on the key factors of the polarity separation for tara tannin assisted by ultrasonic wave with 80% aqueous solution of ethyl acetate （ethanol for 1（1 as extraction solvent. The results indicated that the best extracted conditions was 40 ℃, 25 rain and 36 KHz, with which the extracted products have the strongest antioxidative activities, the molecular weight decrease,and solvent recovery above 80%.
出处
《皮革科学与工程》
CAS
2008年第6期8-12,共5页
Leather Science and Engineering
基金
国家自然科学基金(20676067)资助
关键词
塔拉单宁
抗氧化性
极性分离
总酚含量
超声波
tara tannin
antioxidation
polatrity extraction
total phenol content
ultrasonic wave
