Table 4 Results of Box-Behnken test design

Test number	Factors and coding			Sterilization rate (Y1) (%)	Water activity (Y2)
	A	B	C
1	0	0	0	99.67±0.22	0.893±0.003
2	0	–1	1	96.57±2.33	0.903±0.004
3	–1	0	–1	90.11±5.01	0.924±0.003
4	1	0	–1	95.47±2.32	0.899±0.006
5	0	1	–1	97.19±1.15	0.911±0.005
6	0	0	0	99.63±0.17	0.889±0.003
7	1	–1	0	97.13±2.11	0.910±0.003
8	0	0	0	99.54±0.21	0.882±0.002
9	–1	–1	0	89.39±2.22	0.919±0.003
10	–1	1	0	87.01±1.84	0.941±0.005
11	1	1	0	92.17±2.09	0.925±0.005
12	0	0	0	99.61±0.32	0.879±0.002
13	0	1	1	90.01±1.33	0.926±0.005
14	0	0	0	99.46±0.46	0.875±0.003
15	1	0	1	99.04±0.33	0.898±0.001
16	–1	0	1	92.14±4.11	0.906±0.005
17	0	–1	–1	91.67±0.87	0.920±0.003

Values are mean±standard deviation.