Research article summary (published 30 Jul 2001):

Berry phenolics and their antioxidant activity.

Full Abstract

Phenolic profiles of a total of 26 berry samples, together with 2 apple samples, were analyzed without hydrolysis of glycosides with HPLC. The phenolic contents among different berry genera varied considerably. Anthocyanins were the main phenolic constituents in bilberry, bog-whortleberry, and cranberry, but in cowberries, belonging also to the family Ericaceae genus Vaccinium, flavanols and procyanidins predominated. In the family Rosaceae genus Rubus (cloudberry and red raspberry), the main phenolics found were ellagitannins, and in genus Fragaria (strawberry), ellagitannins were the second largest group after anthocyanins. However, phenolic acids were dominant in rowanberries (genus Sorbus) and anthocyanins in chokeberry (genus Aronia). In the family Grossulariaceae genus Ribes (currants and gooseberry), anthocyanins predominated, as well as in crowberries (family Empetraceae genus Empetrum). In apples, hydroxycinnamic acids were the main phenolic subgroup. Extraction methods for berries and apples were studied to produce phenolic extracts with high antioxidant activity. Evaluation of antioxidant activity was performed by autoxidazing methyl linoleate (40 degrees C, in the dark). The extraction method affected remarkably both the phenolic composition and the antioxidant activity, but with statistical analysis the observed activity could not be well explained with the contents of individual phenolic subgroups.

Author information

Author/s: Kähkönen, M P (MP); Hopia, A I (AI); Heinonen, M (M);

Affiliation: Department of Applied Chemistry and Microbiology, Division of Food Chemistry, P.O. Box 27, FIN-00014 University of Helsinki, Finland. marja.kahkonen(-atsign-)helsinki.fi

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

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

Reference: 2001-Aug; vol 49 (issue 8) : pp 4076-82

Dates: Created 2001/08/21; Completed 2001/12/04; Revised 2006/11/15;

PMID: 11513713, 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.

Anthocyanins - analysis Antioxidants - analysis Chromatography, High Pressure Liquid

Flavonoids - analysis Fruit - chemistry Phenols - analysis

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

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