大孔吸附树脂纯化茶条槭叶中没食子酸的研究  

Study on Purification of Gallic Acid from Leaves of Acerginnala Maxim. by Macroporous Resin

作　　者：邱亮[1] 于华忠[1] 

机构地区：[1]吉首大学林产化工湖南省重点实验室,湖南张家界427000

出　　处：《广州化工》2012年第7期85-88,共4页GuangZhou Chemical Industry

基　　金：湖南省自然科学基金资助项目(10JJ6024);湖南省高校"林产资源化学与林化产品开发"科技创新团队支持计划(湘教通(2010)212号);张家界市科技局项目(2011YB06)

摘　　要：以茶条槭叶为原料碱水解提取没食子酸,通过静态吸附和解吸实验对7种大孔吸附树脂进行筛选,采用筛选出来的XDA-8树脂进行纯化工艺研究。结果表明:XDA-8树脂是7种树脂中最合适的纯化树脂,最佳纯化工艺为,上样液pH=3,上样流速3 mL/min,洗脱剂最适宜的浓度、pH和用量分别为80%乙醇,pH≤1和3 BV(倍柱体积)。经XDA-8大孔吸附树脂纯化后所得产物没食子酸含量为25.878%较提取液中没食子酸含量12.483%有所提高,但纯化效果不显著。Gallic acid was extracted from leaves of Acerginnala Maxim.by hydrolyzing in alkali liquor.XDA-8 macroporous resin was chosen from seven types of macroporous resins for static adsorption and elution to study on purification process of gallic acid from leaves of Acerginnala Maxim.The result showed that XDA-8 macroporous resin had the best effect on purification with the feed solution pH=3 and the sampling rate 3 mL/min,respectively,and the connect ratio of eluent was 80% alcohol,pH≤1 and eluant volume 3 BV（bed volume）.By this technology,the gallic acid content was increased from 12.483% of the crude extract to 25.878%.

关 键 词：大孔吸附树脂 茶条槭 没食子酸 纯化 

分 类 号：TS202.3[轻工技术与工程—食品科学]