Potential of β-Amylase from Sweet Potato (Ipomoea batatas Lam) Extract on the Mashing of Safrari Sorghum

Table 6

Box-Behnken coded and transformed experimental values for Ipomoea batatas powder β-amylase extraction matrix with response.

Run	Coded values			Real values			Response
				Ratio (v/v); ()	Time (min); ()	Temperature (°C); ()	β-Amylase activity (U/mg); ()
1	-1	-1	0	0.05	30	35	2.49
2	1	-1	0	0.10	30	35	20.43
3	-1	1	0	0.05	210	35	0.93
4	1	1	0	0.10	210	35	20.07
5	-1	0	-1	0.05	120	10	3.28
6	1	0	-1	0.10	120	10	21.57
7	-1	0	1	0.05	120	60	1.65
8	1	0	1	0.10	120	60	23.27
9	0	-1	-1	0.075	30	10	8.41
10	0	1	-1	0.075	210	10	12.87
11	0	-1	1	0.075	30	60	8.21
12	0	1	1	0.075	210	60	14.02
13	0	0	0	0.075	120	35	12.03
14	0	0	0	0.075	120	35	11.66
15	0	0	0	0.075	120	35	9.79