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Chiral Determination of Naringenin by Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry and Application in Citrus Peel and Pulp

文献类型： 外文期刊

作者： Yao, Zhoulin 1 ; Wu, Shaohui 1 ; Zhang, Hu 1 ; Feng, Xianju 1 ; Wang, Zhen 2 ; Lin, Mei 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Hangzhou, Peoples R China

2.Nanjing Agr Univ, Coll Plant Protect, State & Local Joint Engn Res Ctr Green Pesticide I, Dept Pesticide Sci, Nanjing, Peoples R China

关键词： naringenin; citrus; absolute configuration; chiral analysis; ultra-performance liquid chromatography; tandem mass spectrometry

期刊名称：FRONTIERS IN NUTRITION （ 影响因子：6.59； 五年影响因子：6.873 ）

ISSN： 2296-861X

年卷期： 2022 年 9 卷

页码：

收录情况： SCI

摘要： A chiral separation method of naringenin in citrus pulp and peel was established using ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) in this study. The liquid-phase conditions for separation were Chiralpak IG-3 column at 40 degrees C, mobile phase of methanol, and 0.1% formic acid solution (85/15; v/v). Isovolumetric elution can complete the detection within 5 min. Considering the matrix effect, the matrix standard calibration curve was used for sample quantification. Quantitation was achieved by fitting a calibration curve using a standard matrix. The mean overall recoveries of the two enantiomers from orange pulp were 91.0-110.0% and orange peel were 85.3-110.3%, with relative standard deviations of 1.5-3.8 and 0.9-3.6% at the 0.5, 2.5, 50, and 250 mu g/kg levels, respectively. The limit of quantification for all enantiomers in the citrus matrix did not exceed 0.5 mu g/kg. Furthermore, the absolute configuration of the naringenin enantiomer was determined by combining experimental and predicted electron circular dichroism spectroscopy, and it was confirmed on a Chiralpak IG-3 column that the first eluting enantiomer was (S)-naringenin. The determination of chiral naringenin content in actual citrus samples showed that the naringenin content in hybrid citrus and citrus pulp was significantly higher than that in pomelo. The method established in this study can be used for the determination of naringenin enantiomers in citrus, which is beneficial to variety selection.

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