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

Emma M Brown, Chris I R Gill, Derek Stewart, Gordon J McDougall

    Research output: Contribution to journalArticle

    7 Citations (Scopus)

    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.

    Original languageEnglish
    Pages (from-to)13-23
    Number of pages11
    JournalJournal of Berry Research
    Volume6
    Issue number1
    DOIs
    Publication statusPublished - 11 Mar 2016

    Keywords

    • Anthocyanins
    • berries
    • LCMS
    • proanthocyanidins
    • Vaccinium

    ASJC Scopus subject areas

    • Agronomy and Crop Science
    • Plant Science
    • Soil Science
    • Horticulture
    • Food Science
    • Biochemistry

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