Phenolic antioxidants in wood smoke

被引:94
|
作者
Kjällstrand, J [1 ]
Petersson, G [1 ]
机构
[1] Chalmers Univ Technol, Dept Chem Environm Sci, S-41296 Gothenburg, Sweden
关键词
combustion; air pollutants; gas chromatography; methoxyphenols; phenoxy radicals; lipid peroxidation;
D O I
10.1016/S0048-9697(00)00863-9
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Ten prominent dimethoxyphenols were determined in birchwood smoke from choked and open laboratory burning and in chimney smoke from a tiled stove. The structures of the methoxyphenols are similar to those of the well-known tocopherol and ubiquinol antioxidants. The 2.6-dimethoxyphenols characterising hardwood smoke are stronger antioxidants than the corresponding 2-methoxyphenols present mainly in softwood smoke. The antioxidant activity is highest for the 2,6-dimethoxyphenols with 4-alkenyl and 4-alkyl groups, which constitute 60-70%, of the total amount of dimethoxyphenols. Phenolic antioxidants are scavengers of oxygen radicals and should be considered when health hazards of small-scale incomplete biomass burning are estimated. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:69 / 75
页数:7
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