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首页> 外文期刊>Current topics in nutraceutical research >SEPARATION AND PURIFICATION OF GINKGOLIC ACID FROM GINKGO BILOBAL PEEL BY MACROPOROUS RESIN
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SEPARATION AND PURIFICATION OF GINKGOLIC ACID FROM GINKGO BILOBAL PEEL BY MACROPOROUS RESIN

机译：大孔树脂从银杏叶皮中分离纯化银杏酸

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摘要

Ginkgolic acid (GA) was obtained from Ginkgo bilobal peel by means of ethanol and macroporous resin purifying process. The static adsorption and desorption experiments were performed. A kind of suitable macroporous resin was selected from D101, D1300, AB-8 and DA201 resin. The dynamic adsorption and desorption experiments were also performed to analyze the influence of the concentration and flow velocity of the crude extraction solution on adsorption. Moreover, the influence of the flow velocity and concentration of the eluent on desorption were also analyzed to optimize the parameters of purifying process of GA by macroporous resin. Results showed that D101 resin had much higher static adsorption and desorption ratio, which was a suitable resin for purifying GA. Results of the dynamic adsorption and the desorption experiments showed that the high concentration and the low flow velocity of the crude solution sample were benefit for the process of adsorption. 100% ethanol was used as the eluent and the reasonable amount of eluent was 10 times the volume of the resin column (BV). The flow velocity of the solution sample and the eluent was 1.0ml/min. By optimizing the macro-porous resin purification method the purity of GA attained 80.79% which was extracted and purzfied from the Ginkgo bilobal peel.
机译：通过乙醇和大孔树脂纯化工艺从银杏双叶果皮中获得银杏酸（GA）。进行了静态吸附和解吸实验。从D101，D1300，AB-8和DA201树脂中选择一种合适的大孔树脂。还进行了动态吸附和解吸实验，以分析粗提液的浓度和流速对吸附的影响。此外，还分析了流速和洗脱液浓度对脱附的影响，以优化大孔树脂纯化GA的工艺参数。结果表明，D101树脂具有较高的静态吸附和解吸比，是一种适合纯化GA的树脂。动态吸附和解吸实验的结果表明，粗溶液样品的高浓度和低流速有利于吸附过程。使用100％乙醇作为洗脱液，合理的洗脱液量是树脂柱（BV）体积的10倍。溶液样品和洗脱液的流速为1.0ml / min。通过优化大孔树脂的纯化方法，GA的纯度达到80.79％，并从银杏双叶果皮中提取并纯化。

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