Table 6.

ANOVA by CCD design for SFE of G. procumbens.

Response	Yield	Solubility
Prob > F	< 0.0001	0.0028
Lack of fit	0.4441	0.0050
R-squared	0.9529	0.8621
Pred R-squared	0.8932	0.0031
Adj R-squared	0.9312	0.7380
Significant factor	A	A
	B	C
	C	AC
	AC
Coefficient	A = 3.20 B = 1.13 C = 3.10 AB = − 0.05 AC = 2.11 BC = 0.77 A2 = – B2 = – C2 = –	A = 0.49 B = 0.03 C = 0.33 AB = 0.09 AC = 0.42 BC = − 0.16 A2 = 0.25 B2 = − 0.07 C2 = 0.28