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Article: Free radical scavenging properties and phenolic content of Chinese black-grained wheat

TitleFree radical scavenging properties and phenolic content of Chinese black-grained wheat
Authors
KeywordsAntioxidant
Black-grained wheat
DPPH free radical
Phenolic
Radical scavenging
Issue Date2005
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jafcau
Citation
Journal Of Agricultural And Food Chemistry, 2005, v. 53 n. 22, p. 8533-8536 How to Cite?
AbstractFree radical scavenging properties and phenolic content of extracts from a novel Chinese black-grained wheat were evaluated for comparison with selected wheat controls. Extracts of bran and whole meal were compared for their scavenging activities against the 2,2-diphenyl-1-picryhydrazyl (DPPH) free radical. The total phenolic content and phenolic acid levels were determined using colorimetric and high-performance liquid chromatography (HPLC) methods, respectively. There were significant differences in radical scavenging activities and phenolic contents among bran or whole meal samples of Chinese black-grained wheat and selected wheat controls. Chinese black-grained wheat had the strongest scavenging activity and the highest total phenolic content among the wheat samples. The scavenging activity and total phenolic content of wheat bran was generally twice as high as that of whole meal. A positive correlation was found between DPPH radical scavenging activity and total phenolic content of bran (R = 0.86) and whole meal (R = 0.96). In addition, HPLC analysis detected the presence of gallic, p-hydroxybenzoic, caffeic, syringic, p-coumaric, vanillic, gentisic, o-coumaric acid, and ferulic acids in wheat bran. Ferulic acid content was highest among the phenolic acids. Chinese black-grained wheat may be considered as a potential source of natural antioxidants given its high free radical scavenging ability and phenolic content. Additional research is needed to further investigate other phenolic compounds and evaluate their contribution to the antioxidant activity in order to understand the nutraceutical value of the novel black-grained wheat genotype. © 2005 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/68386
ISSN
2015 Impact Factor: 2.857
2015 SCImago Journal Rankings: 1.246
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Wen_HK
dc.contributor.authorShan, Fen_HK
dc.contributor.authorSun, Sen_HK
dc.contributor.authorCorke, Hen_HK
dc.contributor.authorBeta, Ten_HK
dc.date.accessioned2010-09-06T06:04:09Z-
dc.date.available2010-09-06T06:04:09Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal Of Agricultural And Food Chemistry, 2005, v. 53 n. 22, p. 8533-8536en_HK
dc.identifier.issn0021-8561en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68386-
dc.description.abstractFree radical scavenging properties and phenolic content of extracts from a novel Chinese black-grained wheat were evaluated for comparison with selected wheat controls. Extracts of bran and whole meal were compared for their scavenging activities against the 2,2-diphenyl-1-picryhydrazyl (DPPH) free radical. The total phenolic content and phenolic acid levels were determined using colorimetric and high-performance liquid chromatography (HPLC) methods, respectively. There were significant differences in radical scavenging activities and phenolic contents among bran or whole meal samples of Chinese black-grained wheat and selected wheat controls. Chinese black-grained wheat had the strongest scavenging activity and the highest total phenolic content among the wheat samples. The scavenging activity and total phenolic content of wheat bran was generally twice as high as that of whole meal. A positive correlation was found between DPPH radical scavenging activity and total phenolic content of bran (R = 0.86) and whole meal (R = 0.96). In addition, HPLC analysis detected the presence of gallic, p-hydroxybenzoic, caffeic, syringic, p-coumaric, vanillic, gentisic, o-coumaric acid, and ferulic acids in wheat bran. Ferulic acid content was highest among the phenolic acids. Chinese black-grained wheat may be considered as a potential source of natural antioxidants given its high free radical scavenging ability and phenolic content. Additional research is needed to further investigate other phenolic compounds and evaluate their contribution to the antioxidant activity in order to understand the nutraceutical value of the novel black-grained wheat genotype. © 2005 American Chemical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jafcauen_HK
dc.relation.ispartofJournal of Agricultural and Food Chemistryen_HK
dc.subjectAntioxidanten_HK
dc.subjectBlack-grained wheaten_HK
dc.subjectDPPH free radicalen_HK
dc.subjectPhenolicen_HK
dc.subjectRadical scavengingen_HK
dc.titleFree radical scavenging properties and phenolic content of Chinese black-grained wheaten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-8561&volume=53&spage=8533&epage=8536&date=2005&atitle=Free+radical+scavenging+properties+and+phenolic+content+of+Chinese+black-grained+wheaten_HK
dc.identifier.emailCorke, H: harold@hku.hken_HK
dc.identifier.authorityCorke, H=rp00688en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jf051634yen_HK
dc.identifier.pmid16248549-
dc.identifier.scopuseid_2-s2.0-27744504648en_HK
dc.identifier.hkuros121699en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-27744504648&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume53en_HK
dc.identifier.issue22en_HK
dc.identifier.spage8533en_HK
dc.identifier.epage8536en_HK
dc.identifier.isiWOS:000232909500018-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, W=9245606400en_HK
dc.identifier.scopusauthoridShan, F=36864171700en_HK
dc.identifier.scopusauthoridSun, S=7404509695en_HK
dc.identifier.scopusauthoridCorke, H=7007102942en_HK
dc.identifier.scopusauthoridBeta, T=6603223650en_HK

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