Table 2.
pH change of apple wine mash during nine days of fermentation
| Sample | pH | ||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Day 1 | Day 2 | Day 3 | Day 4 | Day 5 | Day 6 | Day 7 | Day 8 | Day 9 | |
| Control | 3.97±0.04a1) | 3.81±0.01a | 3.82±0.02a | 3.80±0.03a | 3.80±0.01a | 3.83±0.01a | 3.85±0.01a | 3.89±0.03a | 3.91±0.02a |
| A | 3.14±0.03c | 3.07±0.03c | 3.09±0.02d | 3.12±0.02c | 3.19±0.02c | 3.26±0.02c | 3.29±0.03c | 3.38±0.02c | 3.42±0.01d |
| B | 3.63±0.03b | 3.49±0.03b | 3.47±0.04c | 3.48±0.04b | 3.49±0.03b | 3.52±0.02b | 3.56±0.02b | 3.60±0.02b | 3.61±0.03c |
| C | 3.90±0.10a | 3.80±0.08a | 3.80±0.03a | 3.81±0.06a | 3.80±0.06a | 3.81±0.06a | 3.83±0.04a | 3.84±0.05a | 3.84±0.05b |
| D | 3.69±0.03b | 3.53±0.02b | 3.52±0.02b | 3.52±0.03b | 3.51±0.03b | 3.53±0.04b | 3.55±0.03b | 3.59±0.03b | 3.59±0.02c |
1)
Different letters (a–d) in the same column indicate significant difference at P<0.05 by Fisher’s least significant difference test.