| 改性木粉填充柱对茶多酚与咖啡因分离应用的研究 |
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| 引用本文： | 彭锦荣,王兵,罗洋,李瑞霞,吴大诚.改性木粉填充柱对茶多酚与咖啡因分离应用的研究[J].离子交换与吸附,2009,25(5). |
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| 作者姓名： | 彭锦荣 王兵 罗洋 李瑞霞 吴大诚 |
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| 作者单位： | 四川大学纺织研究所,成都,610065 |
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| 摘 要： | 用乙基纤维素、己二酸和丙烯酰胺制成浆液改性剂,对木粉进行改性.研究对比了木粉在改性前后对茶多酚(TP)与咖啡因(Caf)的分离效果.研究结果表明,已改性的木粉对TP中3种主要成分(EGC,EGCG和ECG)与Caf的分离效果优于未改性木粉.改性后的木粉可用于TP各组分与Caf分离时的前处理.通过该前处理可将绿茶提取液分离为两部分:一部分主要由咖啡因和表没食子儿茶素(EGC)组成,另一部分主要由表没食子儿茶素没食子酸酯(EGC)和表儿茶素没食子酸酯(ECG)组成.
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| 关 键 词： | 木粉 木粉改性 木粉填充柱 茶多酚 咖啡因 分离性能 |
APPLICATION OF MODIFIED SAWDUSTS-PACKING COLUMN TO SEPARATION OF TEA POLYPHENOLS AND CAFFEINE |
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| PENG Jinrong,WANG Bing,LUO Yang,LI Ruixia,WU Dacheng.APPLICATION OF MODIFIED SAWDUSTS-PACKING COLUMN TO SEPARATION OF TEA POLYPHENOLS AND CAFFEINE[J].Ion Exchange and Adsorption,2009,25(5). |
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| Authors: | PENG Jinrong WANG Bing LUO Yang LI Ruixia WU Dacheng |
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| Institution: | PENG Jinrong WANG Bing LUO Yang LI Ruixia WU Dacheng Textile Institute,Sichuan University,Chengdu 610065,China |
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| Abstract: | The sawdust particle was modified by modified slurry which was made of ethyl cellulose, adipic acid and acrylamide. This work compared the performance of raw and modified sawdust applying in the separation of tea polyphenols (TP) and caffeine (Caf). It was found that the modified sawdust had better performance in the separation of caffeine from ingredients of TP, such as EGCG, ECG, and EGC. The modified sawdust can be used in the pre-separation of the components of TP and caffeine isolating. By this pre-sep... |
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| Keywords: | Sawdust Sawdust modification Sawdust packing column Tea polyphenols Caffeine Separating performance |
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