Research article summary (published 13 Jan 2003):

Oxygen radical absorbing capacity of phenolics in blueberries, cranberries, chokeberries, and lingonberries.

Full Abstract

The antioxidant activity of phenolics in fruits of blueberry (Vaccinium corymbosum cv. Sierra), cranberry (Vaccinium macrocarpon cv. Ben Lear), wild chokeberry (Aronia melanocarpa), and lingonberry (Vaccinium vitis-idaea cv. Amberland) was determined in this study. The phenolic constituents and contents among the different berries varied considerably. Anthocyanins were found to be the main components in all these berries. Chlorogenic acid in blueberry, quercetin glycosides in cranberry and lingonberry, and caffeic acid and its derivative in chokeberry were also present in relatively high concentrations. Chlorogenic acid, peonidin 3-galactoside, cyanidin 3-galactoside, and cyanidin 3-galactoside were the most important antioxidants in blueberry, cranberry, wild chokeberry, and lingonberry, respectively. The contribution of individual phenolics to the total antioxidant capacity was generally dependent on their structure and content in the berries. Phenolics such as quercetin and cyanidin, with 3',4'-dihydroxy substituents in the B ring and conjugation between the A and B rings, had highly effective radical scavenging structures in blueberries, cranberries, chokeberries, and lingonberries. Phenolic acids such as caffeic acid also showed high antioxidant activity, probably due to its dihydroxylation in the 3,4 positions as hydrogen donors.

Author information

Author/s: Zheng, Wei (W); Wang, Shiow Y (SY);

Affiliation: Fruit Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, MD 20705, USA.

Journal and publication information

Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.

Journal: Journal of agricultural and food chemistry (J Agric Food Chem), published in United States. (Language: eng)

Reference: 2003-Jan; vol 51 (issue 2) : pp 502-9

Dates: Created 2003/01/08; Completed 2003/02/26; Revised 2006/11/15;

PMID: 12517117, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Absorption Anthocyanins - analysis; chemistry Antioxidants - analysis; chemistry Blueberry Plant - chemistry Chromatography, High Pressure Liquid Flavonoids - analysis; chemistry

Flavonoids - analysis; chemistry Fruit - chemistry Phenols - chemistry Rosaceae - chemistry Structure-Activity Relationship Vaccinium vitis-idaea - chemistry

Associated Chemicals: Anthocyanins (0) ; Antioxidants (0) ; Flavonoids (0) ; Phenols (0)

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