Table 4 ANOVA results for the Response Surface Model (RSM) of cellulose content in acid pre-treated paddy straws
Source | Sum of squares | df | Mean square | F value | p value | |
|---|---|---|---|---|---|---|
Model | 185.76 | 9 | 20.64 | 92.63 | < 0.0001 | Significant |
A-Acid Conc | 16.53 | 1 | 16.53 | 74.19 | 0.0003 | |
B-Time | 14.69 | 1 | 14.69 | 65.92 | 0.0005 | |
C-Temperature | 140.78 | 1 | 140.78 | 631.83 | < 0.0001 | |
AB | 0.5852 | 1 | 0.5852 | 2.63 | 0.1660 | |
AC | 0.8930 | 1 | 0.8930 | 4.01 | 0.1017 | |
BC | 0.0090 | 1 | 0.0090 | 0.0405 | 0.8484 | |
A2 | 12.18 | 1 | 12.18 | 54.66 | 0.0007 | |
B2 | 0.0737 | 1 | 0.0737 | 0.3306 | 0.5902 | |
C2 | 0.0013 | 1 | 0.0013 | 0.0058 | 0.9421 | |
Residual | 0.11 | 5 | 0.2228 | |||
Lack of fit | 0.9837 | 3 | 0.3279 | 5.03 | 0.1703 | Not significant |
Pure error | 0.1304 | 2 | 0.0652 | |||
Cor. Total | 186.88 | 14 |