Table 1.

Experimental range levels of three independent variables in terms of actual values

Variables	Symbols	Coded variable levels
		-α	-1	0	+1	+ α
Meat level (%)	X1	103.182	110	120	130	136.818
Steaming time (min)	X2	9.95	12	15	18	20.045
Drying time (hr)	X3	6.32	7	8	9	9.68

-α- minimum value and + α- maximum value