Research Article

Waste to Energy: Response Surface Methodology for Optimization of Biodiesel Production from Leather Fleshing Waste

Table 4

Analysis of variance (ANOVA) table for response surface quadratic model.

SourceSum of SquaresdfMean SquareF valueP-value
Prob > F
Significance

Model2492.569276.955790.64< 0.0001Significant
A10.2110.2213.29< 0.0001
B0.4810.4810.120.0098
C10.61110.61221.82< 0.0001
AB20.8120.8434.92< 0.0001
AC7.0317.03147.01< 0.0001
BC2.3112.3148.32< 0.0001
A2127.761127.762671.19< 0.0001
B2336.751336.757040.95< 0.0001
C2167.991167.993512.5< 0.0001
Residual0.48100.048
Lack of Fit0.03657.24E-030.0820.9921Not significant
Pure Error0.4450.088
Cor Total2493.0319