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Antioxidant activity and characterization of volatile constituents of beechwood creosote

Permanent URL:
http://handle.nal.usda.gov/10113/19306
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Abstract:
Volatile constituents of beechwood creosote were determined using gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The major volatile constituents of creosote were 2-methoxyphenol (guaiacol; 25.2%) 2-methoxy-4-methylphenol (4-methylguaiacol; 21.4%), 3-methylphenol (m-cresol; 8.3%) 4-methylphenol (p-cresol; 7.9%) 2-methylphenol (o-cresol; 4.6%) and phenol (2.8%). The antioxidant activity of creosote was evaluated by three different chemical assays. Beechwood creosote exhibited potent inhibitory effects on the formation of conjugated diene hydroperoxides (from methyl linoleate) at concentrations of 500, 750 and 1000 microgram ml(-1). Creosote had a potent inhibitory effect on the oxidation of hexanal for 40 days at a level of 5 microgram ml(-1) and also inhibited malonaldehyde (MA) formation from ethyl arachidonate by 92% at a level of 50 microgram ml(-1). The antioxidative activity of creosote was comparable with that of the well-known antioxidants alpha-tocopherol and BHT in the hexanal assay. However, creosote displayed comparatively lower antioxidant activity in the other two assays.
Author(s):
Lee, K.G. , Lee, S.E. , Takeoka, G.R. , Kim, J.H. , Park, B.S.
Subject(s):
Fagus , wood , creosote , volatile organic compounds , antioxidants , antioxidant activity , food additives , herbal medicines , medicinal properties
Format:
p. 1580-1586.
Note:
Includes references
Source:
Journal of the science of food and agriculture 2005 July, v. 85, no. 9
Language:
English
Year:
2005
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.