Table 6.

The design scheme and test results of the Box–Behnken design.

Run numbers	A	C	F	Y 1	Y 2
				(1010 CFU/ml)	(mm/ml)
1	−1	−1	0	1.77	133.63
2	−1	1	0	1.52	132.63
3	1	1	0	0.54	133.60
4	0	0	0	3.23	162.00
5	1	−1	0	0.61	126.73
6	0	−1	1	0.32	160.07
7	0	−1	−1	0.92	124.70
8	1	0	1	0.14	133.60
9	0	0	0	2.22	154.67
10	0	1	1	1.96	166.53
11	−1	0	1	1.40	127.37
12	0	0	0	3.29	143.73
13	−1	0	−1	1.24	132.90
14	1	0	−1	0.49	114.77
15	0	0	0	2.76	153.93
16	0	0	0	3.68	154.53
17	0	1	−1	1.75	132.53