Table 3.
Main volatile compounds of sequential fermentation with M. pulcherrima in different aeration conditions (mg/L).
| Fermentation Trials |
M. pulcherrima 1 mL/L/min |
M. pulcherrima 20 mL/L/min |
M. pulcherrima Semianaerobic | S. cerevisiae Semianaerobic |
|---|---|---|---|---|
| Esters | ||||
| Ethyl butyrate | 0.12 ± 0.06 c | 0.96 ± 0.004 a | 0.575 ± 0.03 b | 0.14 ± 0.01 c |
| Isoamyl acetate | 0.25 ± 0.07 b | 1.67 ± 0.01 a | 0.240 ± 1.14 b | 0.136 ± 0.04 c |
| Ethyl hexanoate | 0.05 ± 0.02 b | 0.15 ± 0.09 a | 0.079 ± 0.05 b | 0.062 ± 0.02 b |
| Phenyl ethyl acetate | 0.021 ± 0.005 a | 0.01 ± 0.0006 a | 0.031 ± 0.020 a | 0.02 ± 0.002 a |
| Ethyl acetate | 46.3 ± 3.6 b | 169 ± 5.4 a | 37 ± 5.9 c | 23.00 ± 2.07 d |
| Alcohols | ||||
| β-Phenyl ethanol | 18.52 ± 0.10 c | 30.42 ± 0.44 a | 26.20 ± 0.07 b | 9.655 ± 0.19 d |
| n-Propanol | 18.9 ± 0.4 b | 21.54 ± 1.74 a | 20.04 ± 1.89 a | 18.3 ± 2.0 b |
| Isobutanol | 58.9 ± 4.0 b | 120.50 ± 4.21 a | 42.13 ± 2.00 c | 14.9 ± 3.7 d |
| Amylic alcohol | 34 ± 5.64 a | 27.02 ± 1.17 b | 18.13 ± 3.45 c | 20.1 ± 0.4 c |
| Isoamylic alcohol | 241.6 ± 21.2 a | 181.81 ± 6.45 b | 164.3 ± 16.84 c | 159.61 ± 4.21 c |
| Carboxylic Acids | ||||
| Butyric acid | 0.024 ± 0.003 a | 0.083 ± 0.06 a | 0.038 ± 0.006 a | 0.022 ± 0.002 a |
| Diethyl succinate | 0.002 ± 0.002 b | 0.024 ± 0.02 a | 0.008 ± 0.0 30 ab | 0.005 ± 0.000 b |
| Monoterpens | ||||
| Linalool | 0.011 ± 0.003 a | 0.004 ± 0.01 b | 0.004 ± 0.002 b | 0.000 ± 0.001 c |
| Geraniol | 0.009 ± 0.003 b | 0.122 ± 0.003 ab | 0.006 ± 0.08 b | 0.232 ± 0.003 a |
| Carbonyl Compounds | ||||
| Acetaldehyde | 14.91 ± 2.57 b | 50.52 ± 4.37 a | 66.9 ± 18.7 a | 22.50 ± 4.74 b |
Data are means ± standard deviations from three independent experiments. Data with different superscript letters (a,b,c) within each row, are different homogeneous groups according to Duncan tests (0.05%).