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. 2019 Jun 12;5(6):e01953. doi: 10.1016/j.heliyon.2019.e01953

Table 2.

Identified volatile compounds.

Compound name Odor descriptionb RT RIexp RIlita Concentration range in the samples, ppb in IS equivalents
1-propanol Fermented, fruity, apple, pear 2.60 589 595 1.67–91.47
2-methyl-1-propanol Wine, whiskey 3.10 627 635 0.00–233.15
1-butanol Balsamic 3.54 657 660 20.24–411.62
3-methyl-1-butanol Cognac, banana, fruity 4.85 735 730 0.00–3631.49
2-methyl-1-butanol Wine, fruity 5.01 743 740 319.31–3541.74
2-hexen-1-ol, (E) Green, leafy 7.51 861 865 12.61–124.72
1-hexanol Green, pungent 7.67 868 865 283.49–4659.29
1-octen-3-ol Earthy, vegetative, mushroom 10.48 990 1000 0.00–83.00
2-ethyl-1-hexanol Citrus, floral 11.38 1030 1030 0.01–51.97
1-octanol Citrus, floral, fatty 12.06 1061 1070 0.00–2.87
2-phenylethanol Floral, rose 13.25 1115 1110 0.00–598.83
Ethyl acetate Fruity, green 2.74 603 610 10.27–713.71
Methyl-2-methylpropanoate Fruity, ether 4.02 690 684 0.06–0.92
Ethyl propionate Fruity, grape, pineapple, rum 4.13 697 705 1.55–109.10
Methyl butanoate Pungent, fermented 4.38 711 720 1.19–19.85
Ethyl-2-methylpropanoate Ether, pungent, fruity 5.18 752 760 0.49–24.63
Methyl-2-methylbutanoate Fruity, ripe, fatty 5.73 780 775 0.53–6.35
Ethyl butanoate Pineapple, cognac 6.08 798 800 3.24–150.82
Butyl acetate Solvent, banana 6.58 820 815 0.17–12.26
Ethyl-3-methylbutanoate Fruity, pineapple, apple, orange 7.37 855 855 0.12–4.90
Isoamyl acetate Banana, pear 7.76 872 875 3.91–252.74
Ethyl-2-methylbutanoate Fruity, apple 8.91 891 895 0.22–5.98
Ethyl pentanoate Fruity, berry, tropical 9.09 930 930 0.07–2.50
Ethyl hexanoate Fruity, pineapple, banana 10.62 996 1000 10.34–254.60
Hexyl acetate Fruity, green apple, banana 10.93 1010 1010 0.50–165.57
Hexyl butanoate Green, fruity, vegetative 14.70 1084 1190 0.00–51.86
Ethyl octanoate Fruity, wine, banana, brandy 14.80 1189 1190 1.41–837.17
2-phenylethyl acetate Honey, rose 16.22 1260 1260 0.00–24.34
Ethyl decanoate Waxy, fruity, apple, grape 18.54 1382 1380 0.01–174.10
3-methylbutyl octanoate Waxy, fruity, pineapple, coconut 19.73 1449 1450 0.00–2.11
Butanoic acid Cheesy 6.85 832 840 0.00–27.24
2-methylbutanoic acid Cheesy, fermented 7.72 870 870 0.00–13.71
Benzaldehyde Almond, cherry 9.79 960 955 0.00–11.78
3-octanone Herbal, lavender, mushroom 10.20 978 980 0.00–0.91
Octanal Waxy, citrus 10.75 1002 1005 0.07–150.04
Phenylacetaldehyde Honey, rose 11.71 1045 1045 0.00–2.99
Vanillin Vanilla 18.78 1395 1400 0.00–0.05
a

Approximate average value according to NIST database (US Department of Commerce, Gaithersburg, MD, USA).