Run Factor 1 A:pH Factor 2 B:temp (°C) Response 1 Ethanol (g/L)
1 7.2 31.00 36
2 5.8 31.00 76.4
3 5.8 18.27 52
4 5.8 43.73 47
5 4.8 40.00 57.8
6 4.3 31.00 59.7
7 6.8 22.00 44.7
8 4.8 22.00 58.2
9 6.8 40.00 42
Table 1: The combined effect of two factors i.e. pH and temperature in 9 combinations. Standard order 2 represents the maximum ethanol concentration.