Characterization of Polyphenols from Lycium ruthenicum Fruit by UPLC-Q-TOF/MSE and Their Antioxidant Activity in Caco-2 Cells

文献类型： 外文期刊

第一作者： Wu, Tao

作者： Wu, Tao;Lv, Haiyang;Wang, Fengzhong;Wang, Yi

作者机构：

关键词： antioxidant activity;Lycium ruthenicum Murr.;MSE;polyphenols

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The fruit of Lycium ruthenicum Murr. (LRF) has long been used in folk medicine. Nevertheless, detailed information related to its polyphenol compositions remains scarce. In this study, we confirmed that the total phenolic and anthocyanin contents of LRF fruit extracts (LRFEs) were 4906.5 +/- 60.6 mg of gallic acid equivalents/100 g DW and 787.6 +/- 34.1 mg of cyanindin-3-glucoside equivalents/100 g DW, respectively. A characterization of LRFEs was performed by ultrahigh performance liquid chromatography/quadrupole time-of-flight mass spectrometry using an MSE data acquisition. A total of 26 polyphenols were tentatively identified, of which 19 represent the first reports of these polyphenols in LRFEs. Furthermore, the cellular antioxidant array showed that LRFEs could protect Caco-2 cells against H2O2-induced oxidative damage based on microscopic fluorometric imaging.

分类号： R15`S

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