Table 6: Analysis of variance (ANOVA) of main effects of factors.

SourceSum of squaresdfFvalueP value
Prob > F

Model227.241258.970.0032 significant
Initial pH79.41382.440.0022
Moisture content (mL)20.03320.790.0165
Weight of grape fruit (%)112.843117.140.0013
Weight of waste (g)14.96315.530.0248
Residual0.963
Cor Total228.2015

Std. Dev. 0.57; Mean = 5.04; C.V.% = 11.25; PRESS = 27.40; = 0.9958; Adj = 0.9789; Pred = 0.8799; Adeq Precision = 26.597.