Some volatile aldehydes obtained from oxidation of unsaturated fatty acids Name Flavour 2-undecenal decanal 9-OOH 2-decenal,nonanal 10-OOH nonanal 11-OOH octanal 2,4-decadienal fatty, waxy 3-nonenal 13-OOH hexanal green 2,4,7-decatrienal painty, fishy 3,6-nonadienal soapy 2,4-heptadienal 3-hexenal green bean 13-OOH 3-hexenal green bean 16-OOH propanal Fatty Acid Hydroperoxide Aldehyde formed Oleic (18:1) 8-OOH Linoleic (18:2) 9-OOH Linolenic (18:3) 9-OOH 12-OOHSome volatile aldehydes obtained from oxidation of unsaturated fatty acids Name Flavour 2-undecenal decanal 9-OOH 2-decenal,nonanal 10-OOH nonanal 11-OOH octanal 2,4-decadienal fatty, waxy 3-nonenal 13-OOH hexanal green 2,4,7-decatrienal painty, fishy 3,6-nonadienal soapy 2,4-heptadienal 3-hexenal green bean 13-OOH 3-hexenal green bean 16-OOH propanal Fatty Acid Hydroperoxide Aldehyde formed Oleic (18:1) 8-OOH Linoleic (18:2) 9-OOH Linolenic (18:3) 9-OOH 12-OOH