Table 2.
Volatile organic compounds analyzed by HS-SPME/GC-MS in Chinese Baijiu after 24 h.
| Compounds | Concentration (mg/L) | ||
|---|---|---|---|
| Control | J1 | J116 | |
| Ethyl acetate | 13.99 ± 1.48 a | 9.78 ± 1.24 b | 9.74 ± 1.22 b |
| Ethyl butyrate | 31.95 ± 4.49 a | 26.03 ± 1.98 a | 27.47 ± 2.04 a |
| Ethyl pentanoate | 15.81 ± 1.88 a | 14.46 ± 0.81 a | 15.15 ± 1.36 a |
| Ethyl hexanoate | 451.94 ± 10.56 c | 554.32 ± 15.28 b | 638.95 ± 37.72 a |
| Propyl hexanoate | 1.22 ± 0.18 b | 5.10 ± 0.27 a | 1.86 ± 0.40 b |
| Ethyl heptanoate | 20.30 ± 2.36 c | 32.11 ± 1.90 a | 26.09 ± 2.22 b |
| Butyl hexanoate | 11.29 ± 1.03 b | 15.11 ± 1.23 a | 16.91 ± 0.62 a |
| Ethyl octanoate | 46.05 ± 3.09 b | 54.54 ± 2.81 ab | 57.88 ± 4.01 a |
| Ethyl nonanoate | 1.77 ± 0.18 b | 3.63 ± 0.75 a | 3.00 ± 0.77 ab |
| Hexyl hexanoate | 23.02 ± 2.25 b | 27.45 ± 2.38 b | 36.17 ± 2.42 a |
| Ethyl decanoate | 3.77 ± 0.42 b | 6.69 ± 0.41 a | 7.45 ± 0.96 a |
| Ethyl 2-phenylacetate | 4.86 ± 0.23 b | 6.06 ± 0.53 a | 5.15 ± 0.51 ab |
| Ethyl 2,2-dimethyl-3-oxotetradecanoate | 8.04 ± 0.48 b | 9.29 ± 0.67 b | 17.57 ± 1.55 a |
| Ethyl hexadecanoate | 44.98 ± 2.03 b | 46.35 ± 2.74 b | 62.82 ± 7.32 a |
| Ethyl octadecanoate | 0.63 ± 0.16 b | 5.34 ± 0.33 a | 0.37 ± 0.12 b |
| Ethyl (E)-octadec-9-enoate | 15.71 ± 1.73 b | 44.84 ± 1.75 a | 14.58 ± 0.93 b |
| Ethyl (9Z,12Z)-9,12-Octadecadienoateo | 16.42 ± 1.86 c | 31.00 ± 1.86 a | 24.36 ± 3.65 b |
| Hexadecyl octanoate | 1.59 ± 0.29 a | 0.28 ± 0.22 b | 0.37 ± 0.03 b |
| Butanoic acid | 2.31 ± 0.19 a | 2.74 ± 0.28 a | 2.56 ± 0.34 a |
| Pentanoic acid | 1.38 ± 0.21 ab | 1.23 ± 0.15 b | 1.73 ± 0.18 a |
| Hexanoic acid | 43.33 ± 1.22 ab | 39.58 ± 2.00 b | 47.21 ± 3.69 a |
| Heptanoic acid | 1.53 ± 0.17 a | 1.41 ± 0.21 a | 1.81 ± 0.11 a |
| Octanoic acid | 2.51 ± 0.16 ab | 2.16 ± 0.12 b | 2.77 ± 0.25 a |
Different letters in the same column indicate a significant difference (a,b,c p < 0.05). Significance only indicates the comparison of the same substance in different groups.