Table 1. .
Independent var iables, and their coded and actual values used for analysis

Symbol1)	Independent variable	Coded level
		-2	-1	0	1	2
		X1	Maltodextrin addition ratio (%)	5	10	15	20	25
X2	Inlet temperature (°C)	120	140	160	180	200
X3	Flow rate (mL/min)	35	40	45	50	55

X₁, maltodextrin addition ratio (%); X₂, inlet temperature (°C); X₃, flow rate (mL/min).