Table 3.
Statistical analysis of alkaline loading and pretreatment time on delignification.
| Factor | Ca(OH)2 pretreatment | NaOH pretreatment | ||
|---|---|---|---|---|
| Estimatea,b | p value | Estimatea,c | p value | |
| Alkaline loading | 5.5 | <0.0001 | 8.99 | <0.0001 |
| Time | 2.7 | <0.0001 | 2.71 | <0.0001 |
| Alkaline loading * time | 0.935 | 0.0568 | ||
| Alkaline loading * alkaline loading | -2.83 | 0.0007 | ||
| Time * time | -0.99 | 0.143 | ||
aEstimates not listed had p value > 0.25 and were removed during stepwise regression
bThe R 2 value for the model was 0.94
cThe R 2 value for the model was 0.98