Journal
FOOD CHEMISTRY
Volume 116, Issue 2, Pages 575-579Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2009.03.023
Keywords
Flavanone; Citrus fruits; Stereoisomers; NMR
Funding
- Marie Curie Foundation [MEIF-CT-2005-023788]
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Recently advanced analytical technology has provided evidence of the existence of stereoisomers of many natural products. Particularly, flavanones which might have two different configurations at C-2 exist in many food additives, e.g., citrus fruits. In this study, the possible stereoisomers of flavanone glycosides were identified by NMR spectroscopy. Based on NMR spectra of common flavanone glycosides such as naringin, hesperidin, and neohesperidin, the two existing diastereomeric forms Of the molecules Could clearly be distinguished. The H-1 NMR resonances of two diastereomers of each flavanone glycosides investigated in this study were Fully assigned with the assistance of diverse 2D NMR spectroscopy methods. (C) 2009 Elsevier Ltd. All rights reserved.
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