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Avenanthramides in Oats (Avena Sativa L.) and Structure-Activity Relationships
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för naturvetenskap.
Vise andre og tillknytning
2003 (engelsk)Inngår i: Journal of Agricultural and Food Chemistry, ISSN 0021-8561, E-ISSN 1520-5118, Vol. 51, nr 3, s. 594-600Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Eight avenanthramides, amides of anthranilic acid (1) and 5-hydroxyanthranilic acid (2), respectively, and the four cinnamic acids p-coumaric (p), caffeic (c), ferulic (f), and sinapic (s) acid, were synthesized for identification in oat extracts and for structure−antioxidant activity studies. Three compounds (2p, 2c, and 2f) were found in oat extracts. As assessed by the reactivity toward 1,1-diphenyl-2-picrylhydrazyl (DPPH), all avenanthramides except 1p showed activity. Initially, the antioxidant activity of the avenanthramides decreased in a similar order as for the corresponding cinnamic acids, that is: sinapic > caffeic > ferulic > p-coumaric acid. The avenanthramides derived from 2 were usually slightly more active than those derived from 1. All avenanthramides inhibited azo-initiated peroxidation of linoleic acid. 1c and 1s were initially the most effective compounds. The relative order of antioxidant activities was slightly different for the DPPH and the linoleic acid assays run in methanol and chlorobenzene, respectively.

sted, utgiver, år, opplag, sider
2003. Vol. 51, nr 3, s. 594-600
Emneord [en]
Avena sativa; avenanthramide; caffeic acid; cinnamic acid; p-coumaric acid; dehydrodicinnamic acid dilactone; DPPH; ferulic acid; radical scavengers; sinapic acid
HSV kategori
Identifikatorer
URN: urn:nbn:se:miun:diva-12812DOI: 10.1021/jf020544fOAI: oai:DiVA.org:miun-12812DiVA, id: diva2:378272
Tilgjengelig fra: 2010-12-15 Laget: 2010-12-15 Sist oppdatert: 2017-12-11bibliografisk kontrollert
Inngår i avhandling
1. Naturally occurring phenols with antioxidant, antifungal and anti-browsing activity
Åpne denne publikasjonen i ny fane eller vindu >>Naturally occurring phenols with antioxidant, antifungal and anti-browsing activity
2014 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Sundsvall: Mid Sweden University, 2014. s. 68
Serie
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 198
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Identifikatorer
urn:nbn:se:miun:diva-24028 (URN)978-91-87557-77-4 (ISBN)
Disputas
2014-09-26, 11:00
Veileder
Tilgjengelig fra: 2015-01-02 Laget: 2015-01-02 Sist oppdatert: 2015-03-13bibliografisk kontrollert

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