Table 4. Changes of acidity and pH by 6 AAB strain cultured on liquid with 4% alcohol
| Period (day) | Parameter | Isolated acetic acid bacteria (AAB) |
| GHUR-A11-2 | SR-A24 | GY-A26 | GHF-A37 | JS-B7 | JS-C1 |
| 3 | Acidity | 2.82±0.36a1) | 1.87±0.19bc | 1.96±0.07bc | 1.62±0.23c | 2.15±0.16b | 1.99±0.02bc |
| pH | 3.63±0.08c | 3.89±0.05a | 3.84±0.02ab | 3.92±0.06a | 3.76±0.09b | 3.82±0.02ab |
| 6 | Acidity | 4.29±0.26a | 1.68±0.11d | 2.71±0.23c | 1.58±0.01d | 3.68±0.07b | 3.99±0.23ab |
| pH | 3.38±0.07d | 3.88±0.00a | 3.63±0.02b | 3.92±0.02a | 3.48±0.06c | 3.46±0.00c |
| 9 | Acidity | 3.32±0.30c | 1.75±0.16d | 3.88±0.31b | 1.63±0.11d | 5.01±0.38a | 3.43±0.17bc |
| pH | 3.54±0.05bc | 3.92±0.07a | 3.49±0.01c | 3.95±0.01a | 3.38±0.02d | 3.57±0.02b |
| 12 | Acidity | 2.60±0.29b | 1.82±0.01c | 4.94±0.01a | 1.65±0.01c | 4.93±0.23a | 2.87±0.24b |
| pH | 3.84±0.02b | 4.19±0.08a | 3.59±0.01c | 4.14±0.03a | 3.62±0.01c | 3.86±0.06b |
Means with different letters in the same row are significantly different by Ducan’s multiple range test (p<0.001).