| PURIFICATION OF FLAVONES OF GINKGO LEAVES BY ADSORPTION HZ-841 RESIN |
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| 引用本文： | ZENG Hui ZHOU Xiaohua LI Duanhua Chemistry and Chem. Eng. Dept. of Chongqing University,Chongqing,400044,China. PURIFICATION OF FLAVONES OF GINKGO LEAVES BY ADSORPTION HZ-841 RESIN[J]. Chinese Journal of Reactive Polymers, 2004, 0(Z1) |
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| 作者姓名： | ZENG Hui ZHOU Xiaohua LI Duanhua Chemistry and Chem. Eng. Dept. of Chongqing University Chongqing 400044 China |
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| 作者单位： | ZENG Hui ZHOU Xiaohua LI Duanhua Chemistry and Chem. Eng. Dept. of Chongqing University，Chongqing，400044，China |
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| 摘 要： | The extraction of dry ginkgo biloba L. leaves is a mixture of some effective agents like flavones and lactones, which have therapeutic activities of peripheral vasoregulation, PAF (platelet aggregation factor) antagonism and prevention of membrane damage caused by free radicals, etc. Thus broad application prospect in the field of sanitarian product and cosmetics is expected [1]. The total flavonoid can be extracted in distilled water or in organic solvents, usually methanol, ethanol, or ace…
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PURIFICATION OF FLAVONES OF GINKGO LEAVES BY ADSORPTION HZ-841 RESIN |
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| ZENG Hui ZHOU Xiaohua LI Duanhua Chemistry and Chem. Eng. Dept. of Chongqing University,Chongqing,,China. PURIFICATION OF FLAVONES OF GINKGO LEAVES BY ADSORPTION HZ-841 RESIN[J]. 离子交换与吸附(英文版), 2004, 0(Z1) |
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| Authors: | ZENG Hui ZHOU Xiaohua LI Duanhua Chemistry Chem. Eng. Dept. of Chongqing University Chongqing China |
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| Affiliation: | ZENG Hui ZHOU Xiaohua LI Duanhua Chemistry and Chem. Eng. Dept. of Chongqing University,Chongqing,400044,China |
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| Abstract: | The purification process of total flavones of ginkgo leaves by resin HZ-841 from ethanol extract was studied. First, the total flavone was extracted from the defatted powder of ginkgo L. biloba leaves. Effects of solvents and operation conditions were examined to get a relative high yield and purity in this step. The crude extract was further purified by resin HZ-841. Both adsorption and elution process were studied to obtain an optimized conditions, i.e., pH, flow rate, concentration. A yellow powder was obtained, of which 37.3% was flavones, obviously higher than the basic international standard of 24%. |
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| Keywords: | Total flavonoids Adsorption resin Purification. |
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