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Table 3 Detected aroma compounds with their flavour dilution (FD) factors in each pineapple varieties (Moris, Maspine, MD2, N36, Josapine and Sarawak) grown in Malaysia

From: Classification of different pineapple varieties grown in Malaysia based on volatile fingerprinting and sensory analysis

No Compounda Aroma-qualityb Moris Maspine MD2 N36 Josapine Sarawak RI on TG-5 ms
1 Methyl-2-methylbutanoate Fruity 1024 771
2 2-Hexanol Winey 2 2 780
3 3-Methylbutanoic acid Cheesy 2 792
4 Methyl butyl acetate Banana 2 812
5 Methyl-2-methylpentanoate Fruity 4 2 823
6 Gamma-butyrolactone Weak, milky 2 837
7 Dimethyl malonate Fruity 8 2 2 843
8 Ethyl-2,3-dimethylbutanoate Fruity 8 856
9 Methyl-2-methyl acetoacetate Fruity 8 8 868
10 Methyl-2/3-hydroxy-2/3-methylbutanoate Fruity 8 4 877
11 Methyl hexanoate Fruity 64 128 64 32 16 884
12 Ethyl isohexanoate Pineapple 8 920
13 Methyl-2-methylhexanoate Sulfurous 8 4 2 931
15 Hexanoic acid Fatty 2 974
16 (E)-β-Ocimene Sweet, herbal 2 2 2 2 976
17 Methyl-3-hydroxy-4-methylpentanoate Fruity 8 983
18 Ethyl hexanoate Fruity 16 16 984
19 Gamma-lactone Creamy 16 16 8 986
20 Delta-lactone ND 1006
21 2,5-Dimethyl-4-hydroxy-3(2H)-furanone Strawberry 16 16 32 16 1022
22 Methyl-3-hydroxyhexanoate Fruity 8 1047
23 2,5-Dimethyl-4-methoxy-3(2H)-furanone Caramel, sweet 32 1055
24 Methyl octanoate Fruity 32 16 16 1083
25 Methyl (4E)-4-octenoate Fruity 8 1091
26 3-Octyl acetate Herbal/green 2 1118
27 2,4-Dihydroxy-2,5-dimethyl-3(2H)-furanone Fruity 16 64 128 1173
28 Octanoic acid Rancid 2 2 2 1174
29 Gamma-octalactone Coconut 4 1184
30 Delta-octalactone Creamy 16 32 16 16 16 1205
31 Copaene Woody 8 8 2 1221
32 Methyl decanoate Floral 2 1282
33 2-Methoxy-4-vinyl phenol Smoky 16 4 32 1293
34 Decanoic acid Sweaty 2 2 2   1372
35 Methyl-5-acetoxy octanoate Winey 8 1385
36 gamma-Farnesene ND 1453
37 Delta-undecalactone Coconut 32 16 1483
38 Germacrene Woody 2 1515
39 Globulol Floral 4 1530
40 (-)-Spathulenol Earthy 8 8 1536
41 Dodecanoic acid Soapy/sweaty 2 4 1570
42 y-Dodecalactone Fruity 2 1582
43 (Z)-7-Tetradecenal ND = 1609
44 Pentadecanal Waxy/fresh 4 4 1701
45 3,5-Dimethoxy-4-hydroxycinnamaldehyde Cocoa-like 2 1788
46 Pentadecanoic acid Waxy 2 2 2 1869
47 Methylhexadecanoate Waxy 4 4 4 1878
48 Methyl-(2E)-2-hexadecenoate ND 1886
49 Ethyl hexadecanoate Waxy 2 2 1928
50 Hexadecanoic acid Waxy/sweaty 4 64 4 32 2 1968
51 9-Hexadecenoic acid Waxy 2 1976
52 Octadecanal Greasy 4 1999
53 Eicosane ND 2009
54 Heptadecanoic acid Waxy 2 2 2067
55 Octadecanoic acid Pungent/sweaty 8 2 4 8 2167
56 Ethyl octadecanoate Waxy 8 2 2177
57 (Z,Z)-9,12-Octadecadienoic acid Waxy/sweaty 8 8 4 2183
58 Ethyl oleate Fatty 8 8 2185
59 Geranyl geraniol Floral 8 2192
  1. ND not detectable, FD Flavour dilution factor determined in extract containing the juice volatiles
  2. – odorant not detected
  3. aCompounds were identified by comparing their retention indices on the TG-5 ms column, their mass spectra, and odour nuances with the respective data of the reference odorants
  4. bAroma-quality perceived by panellists during olfactometry