Table 3 Analysis of variance (ANOVA) for Plackett–Burman design
Source | Sum of squares | df | F value | p value Prob > F | |
|---|---|---|---|---|---|
Model | 0.34 | 10 | 600.73 | 0.0317 | significant |
A-initial pH | 0.019 | 1 | 337.99 | 0.0346 | |
B-temperature | 0.035 | 1 | 628.85 | 0.0254 | |
C-inoculation quantity | 0.067 | 1 | 1187.6 | 0.0185 | |
E-fermentation period | 0.11 | 1 | 1929.24 | 0.0145 | |
F-methanol content | 3.63E−04 | 1 | 6.44 | 0.2389 | |
G-SVH | 0.024 | 1 | 424.99 | 0.0309 |