Applications of choline amino acid ionic liquid in extraction and separation of flavonoids and pectin from ponkan peels

文献类型： 外文期刊

第一作者： Wang, Runping

作者： Wang, Runping;Chang, Yuena;Li, Fenfang;Tan, Zhijian

作者机构：

关键词： Aqueous biphasic systems;choline amino acid ionic liquids flavonoids;pectin

期刊名称：SEPARATION SCIENCE AND TECHNOLOGY （ 影响因子：2.475； 五年影响因子：2.077 ）

ISSN： 0149-6395

年卷期： 2016 年 51 卷 7 期

页码：

收录情况： SCI

摘要： Choline leucine ionic liquid solution was chosen to simultaneously extract flavonoids and pectin from ponkan peels, which were subsequently isolated by the corresponding K3PO4-based aqueous biphasic systems (ABS). Under optimized conditions of 54% solution for 100 min extraction at liquid-solid ratio 17, the predicted yields of flavonoids and pectin achieved 1.33% and 13.42%, respectively, the flavonoids determined directly after extraction and the pectin after ABS purification, with the two corresponding measured yields of 1.26% +/- 0.04% and 12.85% +/- 0.51%. Under optimal extraction, crude flavonoids contained maximal total flavonoid content of about 20% +/- 1% after purification of the ABS involving 25% K3PO4 and dilution precipitation. What was directly isolated from K3PO4-rich phase was presumed to be a modified pectin.

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