Add time:08/14/2019         Source:sciencedirect.com

The principal free and combined higher fatty acids of flue-cured (Bright) tobacco have been shown to contain sixteen or eighteen carbon atoms. Seventy-six per cent of the total acids were found to be relatively non-polar saturated or olefinic types with palmitic acid comprising 20·7%, stearic acid (2·1%), oleic acid (3·5%), linoleic acid (5·8%) and linolenic acid (26·2%). Ninety per cent of the total acids were shown to have unbranched structures of 10–34 carbon atoms. Only 4·1% were homologous monomethyl or cyclohexyl substituted compounds and 5·9% had more complex branched structures. The saturated hydrocarbons derived from the simply branched acids proved to be homologs of 2-methyl and 3-methyl isomers with 15–26 carbons atoms and 1-cyclohexyl isomers with 22–25 carbon atoms.

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