Document Detail


Antioxidants, low molecular weight carbohydrates, and total antioxidant capacity in strawberries (Fragaria x ananassa): effects of cultivar, ripening, and storage.
MedLine Citation:
PMID:  15113146     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Four cultivars of strawberries (Senga Sengana, BFr77111, Elsanta, and Honeoye) were studied for their content of antioxidants, total antioxidant capacity, and low molecular weight carbohydrates in relation to harvest year, ripening stage, and cold storage. For ascorbic acid, chlorogenic acid, ellagic acid, and total antioxidative capacity, measured in both water-soluble and water-insoluble extracts, there was a 2-5-fold variation among cultivars. Unripe berries contained lower concentrations of chlorogenic acid and p-coumaric acid and also quercetin and kaempferol compared with riper berries. During cold storage for up to 3 days, relatively few changes in the concentration of the different antioxidants occurred. The concentrations of several investigated parameters were interrelated, for example, for ascorbic acid and water-soluble antioxidant capacity and for ellagic acid and water-insoluble antioxidant capacity. The dominating sugars in strawberries were fructose and glucose, but considerable amounts of sucrose were also present, and their contents varied among cultivars, giving a predicted glycemic index of approximately 81. Verbascose, raffinose, and stachyose were found in only minor amounts. The study shows that the concentration of a number of bioactive compounds in strawberries varied according to cultivar, ripening stage, and storage. This information should make it possible to select strawberries with an optimal content of bioactive compounds.
Authors:
Marie E Olsson; Jimmy Ekvall; Karl-Erik Gustavsson; Jessica Nilsson; Deepa Pillai; Ingegerd Sjöholm; Ulla Svensson; Björn Akesson; Margareta G L Nyman
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  52     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-04-28     Completed Date:  2004-06-28     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2490-8     Citation Subset:  IM    
Affiliation:
Department of Crop Science, Swedish University of Agricultural Sciences, P.O. Box 44, SE-230 53 Alnarp, Sweden. Marie.Olsson@vv.slu.se
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MeSH Terms
Descriptor/Qualifier:
Antioxidants / analysis*
Carbohydrates / analysis*
Cold Temperature
Food Preservation*
Fragaria / chemistry*,  classification,  growth & development
Fruit / chemistry*,  growth & development
Molecular Weight
Solubility
Species Specificity
Chemical
Reg. No./Substance:
0/Antioxidants; 0/Carbohydrates

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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