Fermentation | Organic acid contents (mg/mL) | |||||
---|---|---|---|---|---|---|
Temperature. (℃) | Periods (day) | Citric acid | Tartaric acid | Lactic acid | Acetic acid | Total |
20℃ | 3 | 0.29 | 0.45 | 1.03 | 0.03 | 1.8 |
5 | 0.28 | 0.36 | 1.05 | 0.06 | 1.75 | |
7 | 0.24 | 0.12 | 1.30 | 0.10 | 1.76 | |
25℃ | 3 | 0.42 | 0.40 | 1.02 | 0.06 | 1.9 |
5 | 0.40 | 0.24 | 1.17 | 0.05 | 1.86 | |
7 | 0.18 | 0.10 | 1.71 | 0.08 | 2.07 | |
30℃ | 3 | 0.48 | 0.17 | 2.03 | 0.04 | 2.72 |
5 | 0.39 | 0.13 | 2.57 | 0.10 | 3.19 | |
7 | 0.34 | 0.09 | 4.13 | 0.15 | 4.71 |