Table 4. Solvent-extractable volatile fermentation products of AWRI 838, CXM1 and CXM4 in Chardonnay wines.
Peak Area X 104 | |||||
R.T. | Compound Identity | Flavour Descriptor | AWRI838 | CxM1 | CxM4 |
16.51 | Ethyl octanoate | Sweet, soap | 215±8 a | 216±17 a | 220±30 a |
16.67 | Acetic acid | Vinegar | 655±9 a | 127±10 c | 283±55 b |
19.08 | 2-Methyl-tetrahydrothiophen-3-one | Blackberry, fruit berry | 34±3 a | 16±1 b | 17±2 b |
19.54 | 2.3-Butanediol | Cashew, rubber | 195±27 a | 208±39 a | 179±42 a |
19.67 | 2,6-Dimethyl-4-heptanol | Yeasty, fermented | 144±13 a | 84±2 b | 104±9 b |
20.45 | Isobutyric acid | Cheese, rancid, sour | 48±5 b | 73±9 a | 74±4 a |
20.61 | 1,3-Butanediol | Butter | 83±5 a | 74±5 a | 81±8 a |
21.90 | 1,2-Butanolide | Smokey, hot | 630±3 a,b | 590±3 b | 678±4 a |
22.20 | Butanoic acid | Cheese, rancid, sweaty | 36±2 a | 42±4 a | 42±5 a |
22.60 | Ethyl decanoate | Floral, soap | 137±4 a | 98±13b | 106±14 b |
23.41 | 2-Methyl butanoic acid | Cheese, sour, rancid | 58±2 b | 88±16 a | 45±6 b |
23.48 | Diethyl succinate | Fruity | 194±9 b | 243±2 a | 248±20 a |
24.05 | Ethyl-9-decanoate | Sweet, pleasant | 20±6 c | 45±4 b | 60±7 a |
24.56 | 3-Methyl thiol propanol | Savoury, meat, potato | 45±4 b | 110±16 a | 99±8 a |
27.03 | Ethyl 4-hydroxybutanoate | Sweet, pleasant | 610±18 a | 502±10 c | 546±12 b |
27.27 | β-Phenyl acetate | Sweet, solvent | 50±2 b | 96±10 a | 98±12 a |
28.20 | Hexanoic acid | Vinegar, fermented | 258±27 a | 229±52 a | 284±14 a |
29.77 | 2-Phenyl ethyl alcohol | Floral, rose | 9619±153 c | 18194±244 a | 17115±461 b |
33.05 | Diethyl malate | Green, fruity, caramel | 26±2 a | 26±2 a | 29±1 a |
33.16 | Unidentified | 52±2 b | 58±3 b | 74±4 a | |
33.62 | Octanoic acid | Harsh, rancid | 642±30 a | 650±41 a | 676±64 a |
38.05 | 3-Hydroxy-4-phenyl-2-butanone | Fruity, sweet, caramel | 22±2 c | 47±3 b | 60±5 a |
38.36 | Unidentified | 20±5 c | 46±1 b | 78±9 a | |
38.46 | Ethyl-2-hydroxy-3-phenylpropanoate | Goaty, smokey | 34±5 b | 69±3 a | 77±17 a |
38.69 | Decanoic acid | Fatty | 372±32 a | 260±41 a | 320 95 a |
40.02 | 9-Decenoic acid | Fruity, waxy | 60±4 c | 147±3 b | 193±11 a |
40.77 | 4-Vinyl phenol | Pharmaceutical | 173±1 a,b | 168±7 b | 187±9 a |
41.15 | Ethyl hydrogen succinate | Fruit (mild) | 183±43 a | 329±26 a | 215±24 a |
42.13 | Unidentified | 61±12 a | 55±3 a | 56±3 a | |
53.51 | 4-Hydroxybenzene ethanol | Sweet floral, fruity | 580±28 c | 910±33 a | 741±13b |
Levels not connected by same letter are significantly different (p<0.05).