Table 5.

Optimized level (in the range), optimum level (targeted), predicted optimum value and experimental value of FPC, TFC, TAA, FRP, HPSA and desirability

		Optimum value (In the range)	Optimum value (Targeted)
Variables	Solvent concentration	85.78% v/v	85% v/v
	Temperature	74.35 °C	75 °C
	Time	45 min	45 min
			Predicted Value	Experimental value
Responses	FPC	0.992 mg/g	0.994 mg/g	0.921 mg/g
	TFC	0.46858 mg/g	0.46963 mg/g	0.4588 mg/g
	TAA	0.013768 mM/g	0.01370 mM/g	0.01408 mM/g
	FRP	2.62002 mM/g	2.61875 mM/g	2.532 mM/g
	HPSA	3.179 mM/g	3.1761 mM/g	3.193 mM/g
	Desirability	0.904	0.938