Items | Wild-type strain | ccpA-knockout strain | SEM1 | P-value2 | ||||
---|---|---|---|---|---|---|---|---|
pH 6.5 | pH 5.5 | pH 6.5 | pH 5.5 | Strain | pH | Strain×pH | ||
Lactate dehydrogenase (U/L) | 20.46 | 23.66 | 17.85 | 19.65 | 0.659 | < 0.001 | < 0.001 | 0.137 |
α-amylase (U/L) | 33.87 | 40.28 | 28.41 | 37.06 | 1.345 | < 0.001 | < 0.001 | 0.096 |
Acetokinase (U/L) | 2.34c | 2.43c | 3.06a | 2.71b | 0.089 | < 0.001 | 0.101 | 0.013 |