数字农科院2.0

Characterization of flavonoid glycosides from rapeseed bee pollen using a combination of chromatography, spectrometry and nuclear magnetic resonance with a step-wise separation strategy

文献类型： 外文期刊

作者： Li, Yi;Zhou, Jinhui;Sun, Liping;Li, Yi;Zhou, Jinhui;Li, Yi;Zhou, Jinhui;Qi, Yitao;Ritho, Joan;Zhang, Yongxin;Zheng, Xiaowei;Sun, Liping

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关键词： bee pollen;step-wise separation strategy;semi-preparative HPLC;LC-DAD-ESI-MS;NMR;flavonoid glycosides

期刊名称： NATURAL PRODUCT RESEARCH

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收录情况： SCI

摘要： To identify the structures of flavonoid glycosides in bee pollen collected from rapeseed plants (Brassica napus L.), we utilised an approach that combined liquid chromatography-diode array detector-electrospray ionization-mass spectrometry (LC-DAD-ESI-MS) and nuclear magnetic resonance (NMR) technology with a step-wise separation strategy. We identified four constituents of high purity in rape bee pollen samples: (1) quercetin-3-O--D-glucosyl-(2l)--glucoside, (2) kaempferol-3, 4-di-O--D-glucoside, (3) 5, 7, 4-trihydroxy-3-methoxyflavone-3-O--D-sophoroside and (4) kaempferol-3-O--D-glucosyl-(2l)--D-glucoside. This study will also provide useful reference standards for qualification and quantification of four flavonoid glycosides in natural products.

分类号： R9

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