Document Detail


Sources of antioxidant activity in Australian native fruits. Identification and quantification of anthocyanins.
MedLine Citation:
PMID:  17177507     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Selected native Australian fruits, muntries (Kunzea pomifera F. Muell., Myrtaceae), Tasmanian pepper berry (Tasmanian lanceolata R. Br., Winteraceae), Illawarra plum (Podocarpus elatus R. Br. ex Endl., Podocarpaceae), Burdekin plum (Pleiogynium timorense DC. Leenh, Anacardiaceae), Cedar Bay cherry (Eugenia carissoides F. Muell., Myrtaceae), Davidson's plum (Davidsonia pruriens F. Muell. var. pruriens, Davidsoniaceae), and Molucca raspberry (Rubus moluccanus var. austropacificus van Royen, Rosaceae), were evaluated as sources of antioxidants by 2,2-diphenyl-1-picrylhydrazyl and ferric reducing antioxidant power assays and compared with blueberry (Vaccinum spp. cv. Biloxi). The total reducing capacity of five fruits was 3.5-5.4-fold higher than that of blueberry, and the radical scavenging activities of muntries and Burdekin plum were 1.5- and 2.6-fold higher, respectively. The total phenolic level by Folin-Ciocalteu assay highly correlated with the antioxidant activity. Therefore, systematic research was undertaken to identify and characterize phenolic complexes. In the present study we report on the levels and composition of anthocyanins. The HPLC-DAD and HPLC/ESI-MS-MS (ESI = electrospray ionization) analyses revealed simple anthocyanin profiles of one to four individual pigments, with cyanidin as the dominating type. This is the first evaluation of selected native Australian fruits aiming at their utilization for the development of novel functional food products.
Authors:
Michael Netzel; Gabriele Netzel; Qingguo Tian; Steven Schwartz; Izabela Konczak
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of agricultural and food chemistry     Volume:  54     ISSN:  0021-8561     ISO Abbreviation:  J. Agric. Food Chem.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-12-20     Completed Date:  2007-03-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0374755     Medline TA:  J Agric Food Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  9820-6     Citation Subset:  IM    
Affiliation:
Food Science Australia, Riverside Life Science Center, 11 Julius Avenue, North Ryde, NSW 2113, Australia. michael.netzel@csiro.au
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MeSH Terms
Descriptor/Qualifier:
Angiosperms / chemistry
Anthocyanins / analysis*
Antioxidants / analysis*
Ascorbic Acid / analysis
Australia
Chromatography, High Pressure Liquid
Coniferophyta / chemistry
Eugenia / chemistry
Fruit / chemistry*
Kunzea / chemistry
Phenols / analysis
Rosaceae / chemistry
Winteraceae / chemistry
Chemical
Reg. No./Substance:
0/Anthocyanins; 0/Antioxidants; 0/Phenols; 50-81-7/Ascorbic Acid

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


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