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Lingonberries (Vaccinium vitis-idaea L) and blueberries (Vaccinium corymbosum) contain discrete epicatechin anthocyanin derivatives linked by ethyl bridges

Lingonberries (Vaccinium vitis-idaea L) and blueberries (Vaccinium corymbosum) contain discrete... BACKGROUND:Lingonberries have been associated with a range of potential bioactivities related to their polyphenol content and composition, in particular anthocyanin and proanthocyanidin derivatives.OBJECTIVES:The objective of this study was to examine the anthocyanin composition of extracts of lingonberry and related Vaccinium berries with respect to previously unidentified anthocyanin-like components.METHODS:Extracts were prepared from lingonberries, blueberries and a commercial cranberry juice product and examined by liquid chromatography mass spectroscopic techniques (LCMSn) before and after various fractionation steps.RESULTS:A range of discrete anthocyanin derivatives ethyl linked to (epi)catechin units were identified in lingonberry extracts using LC-MSn methods. Analogous derivatives were detected in similar blueberry extracts, and confirmed in cranberry juices.CONCLUSIONS:Through a combination of fractionation techniques and LCMSn analysis, this paper provides the first evidence that anthocyanin-epicatechin derivatives linked by ethyl bridges are present in lingonberries and in blueberries. These discrete components may be the smallest in a series of proanthocyanidin derivatives with terminal anthocyanins linked through ethyl groups which have previously been inferred in cranberries using mass spectrometric techniques. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Berry Research IOS Press

Lingonberries (Vaccinium vitis-idaea L) and blueberries (Vaccinium corymbosum) contain discrete epicatechin anthocyanin derivatives linked by ethyl bridges

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References (37)

Publisher
IOS Press
Copyright
Copyright © 2016 IOS Press and the authors. All rights reserved
ISSN
1878-5093
DOI
10.3233/JBR-150108
Publisher site
See Article on Publisher Site

Abstract

BACKGROUND:Lingonberries have been associated with a range of potential bioactivities related to their polyphenol content and composition, in particular anthocyanin and proanthocyanidin derivatives.OBJECTIVES:The objective of this study was to examine the anthocyanin composition of extracts of lingonberry and related Vaccinium berries with respect to previously unidentified anthocyanin-like components.METHODS:Extracts were prepared from lingonberries, blueberries and a commercial cranberry juice product and examined by liquid chromatography mass spectroscopic techniques (LCMSn) before and after various fractionation steps.RESULTS:A range of discrete anthocyanin derivatives ethyl linked to (epi)catechin units were identified in lingonberry extracts using LC-MSn methods. Analogous derivatives were detected in similar blueberry extracts, and confirmed in cranberry juices.CONCLUSIONS:Through a combination of fractionation techniques and LCMSn analysis, this paper provides the first evidence that anthocyanin-epicatechin derivatives linked by ethyl bridges are present in lingonberries and in blueberries. These discrete components may be the smallest in a series of proanthocyanidin derivatives with terminal anthocyanins linked through ethyl groups which have previously been inferred in cranberries using mass spectrometric techniques.

Journal

Journal of Berry ResearchIOS Press

Published: Jan 1, 2016

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