Optimization of Keratin Hydrolysate Extraction from Tannery Sheep Hair Waste

Table 7

Fit summaries.

Source	Sequential value	Adjusted R^2	Predicted R^2
Linear	0.0174	0.3586	0.1627
2FI	0.3486	0.3818	−0.0159
Quadratic	<0.0001	0.9930	0.9829	Suggested
Cubic	0.4557	0.9942		Aliased