Table 4: ANOVA of regression equations.

SourceSum of squaresdfMean square value value Status

YIELD
Model124.37913.8216.600.0032Significant
Residual4.16550.83
Lack of fit1.69330.560.46Not significant
Pure error2.47221.24
Cor Total128.5414

Total polyphenol content
Model920608.2638.0500.0004Significant
Residual5541.62
Lack of fit3299.690.330.8087Not significant
Pure error2904.52
Cor total14

Total antioxidant activity
Model193.77921.5328.240.0009Significant
Residual3.8150.76
Lack of fit2.7530.921.730.3861Not significant
Pure error1.0620.53
Cor total197.5914