期刊
FOOD CHEMISTRY
卷 204, 期 -, 页码 167-175出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.02.012
关键词
Flavonoid glycosides; Lime fruit; Ionic liquids; Miniaturized matrix solid-phase dispersion; Ultra-performance liquid chromatography
资金
- National Natural Science Foundation of China [81274065]
- Zhejiang Provincial Natural Science Foundation of China [LY15H280016]
- Hangzhou social development of scientific research projects [20150533B05]
- Research on Public Welfare Technology Application Projects of Zhejiang Province [2014C37069]
- Young and Middle-Aged Academic Leaders of Hangzhou [2013-45]
- new-shoot Talents Program of Zhejiang province [2015R423070]
In this work, two flavonoid glycosides (neohesperidin and naringin) in lime fruit were effectively extracted by miniaturized matrix solid phase dispersion (MSPD), followed by ultra-performance liquid chromatography-ultraviolet detection. The best results were obtained using Florisil (150 mg) as the sorbent and 1-butyl-3-methylimidazolium tetrafluoroborate (0.4 mL, 250 mM) as the elution solvent. This work represents the first attempt of using ionic liquids as a green eluent for extraction of the investigated compounds in miniaturized MSPD. Compared with the conventional methods, the proposed method is advantageous due to improved enrichment factor and reduced reagent consumption. A good linearity was observed with r(2) values (>0.998). Meanwhile, the method gave acceptable recoveries (90.16-96.47%) for the determination of flavonoids in plant samples. The limits of detection of the two analytes ranged between 4.08 and 5.04 mu g/g. The results showed that the optimized method has a great potential for sample preparation in routine analysis of complex plant samples. (C) 2016 Elsevier Ltd. All rights reserved.
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