Screening of Key Antioxidant Compounds of Longan (Dimocarpus longan Lour.) Seed Extract by Combining Online Fishing/Knockout, Activity Evaluation, Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, and High-Performance Liquid Chromatography Electrospray Ionization Mass Spectrometry Methods

被引：30
作者：
Chen, Jinyu [1 ]
Ge, Zhen-zhen [1 ]
Zhu, Wei [1 ]
Xu, Ze [1 ]
Li, Chun-mei [1 ,2 ]
机构：
[1] Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei, Peoples R China
[2] Huazhong Agr Univ, Minist Educ, Key Lab Environm Correlat Food Sci, Wuhan 430070, Hubei, Peoples R China
来源：
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 2014年 / 62卷 / 40期
关键词：
longan seed; phenolic compounds; online knockout; FT-ICR-MS; HPLC-ESI-MS; HPLC-ESI-MS; GALLIC ACID; POLYPHENOLIC COMPOUNDS; STRUCTURE ELUCIDATION; PHENOLIC CONTENT; ELLAGIC ACID; DPPH; COMPONENTS; CAPACITY; FRUIT;
D O I：
10.1021/jf502995z
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
To figure out the key phenolic compounds accounting for the antioxidant effects of longan (Dimocarpus longan Lour.) seed extract online fishing/knockout method, activity evaluation assays, Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS), and high-peformance liquid chromatography electrospray ionization mass spectrometry (HPLC-ESI-MS) analysis were used jointly for the first time. p-Coumaric acid-glycoside, (S)-flavogallonic acid, ellagic acid derivative, and methyl ellagic acid glucopyranoside were first identified in longan seeds. In addition, our study revealed that ellagic acid well as its derivative and p-ourmaric acid-glycoside had important contribution to the potent antioxidant activity of longan seed extract, while gallic acid corilagin, (S)-flavogallonic acid, methyl-ellagic acid glucopyranoside, and ethyl gallate showed very little contribution to the total antioxidant activity of longan seed extract. The combining use of the online fishing/knockout method activity evaluation assays, FT-ICR-MS, and HPLC-ESI-MS anlaysis is a useful and simple strategy for screening of key bioactive compounds from complex extracts.
引用
收藏
页码：9744 / 9750
页数：7
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