No
|
Compounda
|
Odour note
|
Fractionb
|
DB-5
|
FFAP
|
FD
|
---|
1
|
Acetoin
|
Buttery
|
NBF
|
nd
|
1275
|
4
|
2
|
Acetic acid
|
Vinegar-like
|
AF
|
635
|
1450
|
4
|
3
|
2-Methylbutanal
|
Malty
|
NBF
|
663
|
912
|
8
|
4
|
2-Methylpyrazine
|
Popcorn-like
|
NBF
|
820
|
nd
|
8
|
5
|
Butanoic acid
|
Sweaty, cheesy
|
AF
|
835
|
1619
|
4
|
6
|
2,5-Dimethylpyrazine
|
Nutty
|
NBF
|
906
|
nd
|
16
|
7
|
2-Furanmethanethiol
|
Coffee-like
|
AF
|
907
|
1428
|
32
|
8
|
2-Acetyl-1-pyrroline
|
Popcorn-like
|
NBF
|
922
|
1371
|
256
|
9
|
Benzaldehyde
|
Almond-like
|
NBF
|
963
|
1524
|
8
|
10
|
1-Octen-3-one
|
Mushroom-like
|
NBF
|
977
|
1295
|
4
|
11
|
2-Acetylthiazole
|
Roasty, earthy
|
NBF
|
1020
|
1624
|
64
|
12
|
2-Acetylpyridine
|
Popcorn-like
|
NBF
|
1031
|
1551
|
16
|
13
|
4-Hydroxy-2,5-dimethyl-3(2H) furanone
|
Caramel-like
|
AF
|
1067
|
2029
|
8
|
14
|
2-Methoxyphenol
|
Smoky, sweet
|
NBF
|
1088
|
1858
|
32
|
15
|
2-Acetyl-2-thiazoline
|
Popcorn
|
NBF
|
1091
|
1755
|
4
|
16
|
3-Hydroxy-4,5-dimethyl-2(5H) furanone
|
Seasoning-like
|
AF
|
1107
|
2200
|
32
|
17
|
β-Iso-methyl ionone
|
Floral
|
NBF
|
1534
|
nd
|
4
|
18
|
Tetradecanal
|
Creamy, fishy
|
NBF
|
1601
|
nd
|
4
|
19
|
Hexadecanal
|
Cardboard-like
|
NBF
|
1800
|
nd
|
4
|
20
|
Octadecanal
|
Oily
|
NBF
|
1818
|
nd
|
4
|
21
|
Hexadecanol
|
Waxy, floral
|
NBF
|
1854
|
nd
|
4
|
22
|
Hexadecanoic acid
|
Waxy
|
AF
|
1984
|
nd
|
4
|
- AF acidic fraction, NBF neutral and basic fraction, FD flavour dilution
- a Compounds were identified by comparing their retention indices on DB-5 and FFAP columns, mass spectra, and their aroma impressions were compared with the respective reference compounds
- b Fractions in which the odorants were detected by GC–O after fractionation