Table 2. Concentrations of volatile compounds detected during different fermentations.
γ/(mg/L) | SC | LT×SC | LT…SC |
---|---|---|---|
Hexanol | (0.96±0.03)a | (1.02±0.04)a | (0.98±0.06)a |
Isoamyl alcohol | (132.82±6.06)a | (126.92±9.11)a | (102.43±10.64)b |
Isobutanol | (11.36±1.28)a | (12.56±1.86)a | (14.42±2.76)a |
Ethyl acetate | (54.42±3.33)a | (53.61±3.42)a | (50.36±5.56)a |
Ethyl decanoate | (0.11±0.02)a | (0.13±0.03)a | (0.15±0.06)a |
Ethyl hexanoate | (0.32±0.02)a | (0.34±0.04)a | (0.29±0.06)a |
Ethyl lactate | (7.16±0.21)a | (8.89±0.48)b | (13.14±2.18)c |
Ethyl octanoate | (0.36±0.06)a | (0.39±0.09)a | (0.25±0.07)b |
Isoamyl acetate | (1.62±0.03)a | (1.48±0.06)a | (0.98±0.11)b |
Hexanoic acid | (8.24±0.54)a | (8.32±0.72)a | (8.18±1.16)a |
Octanoic acid | (4.32±0.12)a | (4.44±0.18)a | (3.16±0.22)a |
2-Phenylethanol | (18.16±0.15)a | (19.32±0.82)a | (22.08±0.93)b |
2-Phenylethyl acetate | (0.36±0.01)a | (0.39±0.03)a | (0.52±0.06)b |
Results represent the mean value±S.D. of three replicates. Mean values in the same row with the same letter are not significantly different (p<0.05) SC=fermentation with Saccharomyces cerevisiae 87 alone, LT×SC= mixed fermentation with Lachancea thermotolerans 617 and S. cerevisiae 87, LT…SC=sequential fermentation with L. thermotolerans 617 followed by S. cerevisiae 87