acetone

The percentages of C16:0, C16:1, C18:1n9, and MUFA of LT fat were positively correlated (0.41 [less than or equal to] r [less than or equal to] 0.78, p<0.05) with acetaldehyde, 2-methyl butanal, 3-methyl butanal, and 2-propanone percentages (Table 7).

Chemical Area percentage (%) product Pure tar Tar-solvent sample mixture 1 Acetic Acid 62.93 62.88 2 Phenol 9.61 12.8 3 2-propanone, 1-hydroxy 6.02 4.04 4 Furfural 3.64 -- 5 Butyrolactone 2.81 2.85 6 Methyl alcohol 1.44 1.04

An internal standard compound, 2-methyl-3-methanone, n-alkane ([C.sub.8]-[C.sub.20]) and authentic compounds including acetaldehyde, trans-2-decenal, 2-methylpropanal, 2-methylbutanal, 3-methylbutanal, pentanal, hexanal, heptanal, (E), 2-heptenal, 2-methylthiazole, benzaldehyde, octanal, benzeneacetaldehyde, nonanal, decanal, (E,E), 2,4-decadienal, ethanol, 1-propanol, 2-furanmethanol, 1-hexanol, 1-octen-3-ol, fufural, tetradecanal, 1-octanol, acetone, 2-propanone, 2,3-butanedione, 2-butanone, 2-heptanone, 3-octanone, dimethyldisulfide, pyrazine, methylpyrazine, 2,3-dimethylpyrazine etc.

2-propanone, 2-heptanone, methyl heptenone, geranyl acetone, and [beta]-ionone were the other ketones identified in Cape gooseberry.