微滤-超滤组合工艺精制粗茶皂素的研究  

Purification of crude tea-saponin by the combined process of microfiltration and ultrafiltration

作　　者：李梅生[1] 赵宜江[1] 杨文澜[1] 余布谷[2] 

机构地区：[1]淮阴师范学院化学系,江苏省低维材料化学重点建设实验室,江苏淮安223300 [2]金陵石化公司研究所,南京210042

出　　处：《中国油脂》2008年第1期53-56,共4页China Oils and Fats

基　　金：江苏省高校自然科学研究计划项目(05KJB530009)

摘　　要：针对纯度为70%左右的粗茶皂素体系,采用0.5μm的陶瓷微滤膜与截留相对分子质量为10 000的螺旋卷式有机超滤膜(PW 4040)组合工艺对粗茶皂素水溶液进行精制。结果表明,此组合工艺可以将粗茶皂素纯度提高到91%左右,皂素产品得率约为66%。根据皂素的性质对膜清洗再生进行了考察,陶瓷膜及超滤膜通量分别恢复到87.6%与93.0%左右。Using tea- saponin aqueous extract system as raw material, membrane filtration process with 0.5 μm ceramic MF and PW4040 UF with molecular weight cut off 10 000 was used to purify the tea - saponin. The results revealed that the purity of obtained tea saponin was improved from 70% to 91% through the combined process. The yield of product was about 66%. According to the nature of tea - saponin aqueous extract system, a feasible rinsing method was obtained. The MF and UF membrane water flux recovery rate were 87.6% and 93.0% ,respectively.

关 键 词：皂素 精制 膜分离 

分 类 号：TQ423[化学工程]