Volatile compound (mg L−1) | Aeration and dilution rates | |||
---|---|---|---|---|
0 vvm and 0.08 h−1 | 0.02 vvm and 0.08 h−1 | |||
SM | NSM | SM | NSM | |
A (Non-supplemented with yeast extract) | ||||
Acetaldehyde | 50.52 ± 0.39 | 46.26 ± 2.12 | 39.55 ± 0.65 | 46.02 ± 0.32 |
Methanol | 151.08 ± 6.46 | 128.26 ± 0.04 | 176.54 ± 23.23 | 111.88 ± 0.91 |
Propanol | 51.16 ± 0.08 | 44.25 ± 0.08 | 92.59 ± 13.99 | 50.22 ± 1.90 |
Butanol | 1.96 ± 0.00 | 1.03 ± 0.05 | 2.32 ± 0.32 | 0.95 ± 0.09 |
Isobutanol | 10.15 ± 0.37 | 13.98 ± 0.31 | 18.31 ± 2.63 | 15.50 ± 0.57 |
Isoamyl Acohol | 29.39 ± 0.63 | 23.71 ± 0.31 | 24.94 ± 6.04 | 17.93 ± 0.68 |
2-Phenylethanol | 7.74 ± 0.52 | 8.66 ± 0.67 | 7.79 ± 1.20 | 13.46 ± 0.17 |
Ethyl acetate | 17.53 ± 3.25 | 12.89 ± 0.25 | 5.89 ± 0.34 | 14.90 ± 0.73 |
Isoamyl acetate | 0.39 ± 0.29 | 0.24 ± 0.04 | 0.09 ± 0.02 | 0.16 ± 0.00 |
Ethyl hexanoate | 0.18 ± 0.26 | 0.11 ± 0.01 | 0.04 ± 0.01 | 0.10 ± 0.00 |
Ethyl octanoate | 0.18 ± 0.11 | 0.06 ± 0.02 | 0.09 ± 0.03 | 0.03 ± 0.02 |
Ethyl decanoate | nd | nd | 0.20 ± 0.07 | nd |
Phenethyl acetate | 0.06 ± 0.01 | 0.16 ± 0.04 | 0.09 ± 0.02 | nd |
α-terpineol | 0.21 ± 0.17 | 0.11 ± 0.06 | 0.61 ± 0.14 | 0.07 ± 0.09 |
2, 3 Butanedione | 0.60 ± 0.13 | 1.94 ± 0.25 | 3.12 ± 0.54 | 0.29 ± 0.03 |
Volatile compound (mg L−1) | Aeration and dilution rates | |||
---|---|---|---|---|
0 vvm and 0.10 h−1 | 0.02 vvm and 0.12 h−1 | |||
SM | NSM | SM | NSM | |
B (Supplemented with yeast extract) | ||||
Acetaldehyde | 57.47 ± 3.12 | 30.33 ± 3.93 | 59.51 ± 0.35 | 30.45 ± 2.03 |
Methanol | 103.04 ± 10.05 | 134.77 ± 3.13 | 100.16 ± 9.56 | 125.03 ± 0.91 |
Propanol | 69.94 ± 5.88 | 65.93 ± 4.68 | 65.74 ± 4.48 | 70.02 ± 0.99 |
Butanol | 1.30 ± 0.36 | 0.73 ± 0.58 | 0.55 ± 0.78 | 0.97 ± 0.01 |
Isobutanol | 16.39 ± 0.86 | 16.81 ± 0.73 | 18.41 ± 4.37 | 15.23 ± 0.10 |
Isoamyl Acohol | 53.74 ± 0.76 | 58.52 ± 3.57 | 51.88 ± 4.79 | 49.14 ± 0.74 |
2-Phenylethanol | 10.44 ± 1.24 | 4.82 ± 1.94 | 5.71 ± 2.87 | 3.91 ± 0.74 |
Ethyl acetate | 14.73 ± 0.44 | 46.29 ± 2.56 | 16.09 ± 0.42 | 18.15 ± 0.98 |
Isoamyl acetate | 0.91 ± 0.49 | 3.10 ± 0.08 | 1.08 ± 0.51 | 0.88 ± 0.04 |
Ethyl hexanoate | 0.38 ± 0.18 | 0.84 ± 0.07 | 0.34 ± 0.15 | 0.40 ± 0.01 |
Ethyl octanoate | 0.14 ± 0.08 | 0.11 ± 0.16 | 0.07 ± 0.09 | 0.05 ± 0.06 |
Ethyl decanoate | 0.03 ± 0.04 | 0.06 ± 0.08 | 0.01 ± 0.01 | nd |
Phenethyl acetate | 0.26 ± 0.01 | 0.16 ± 0.09 | 0.18 ± 0.26 | nd |
α-terpineol | 0.08 ± 0.02 | nd | nd | nd |
2, 3 Butanedione | 0.76 ± 0.50 | 1.67 ± 0.69 | 0.30 ± 0.42 | 0.99 ± 0.04 |