Microbial Cell Factories

Table 3 Analysis of variance (ANOVA) and model coefficients estimated by multiple linear regression for response surface quadratic model

From: Tailoring nutritional and process variables for hyperproduction of catalase from a novel isolated bacterium Geobacillus sp. BSS-7

Factors^a	Catalase activity
Factors^a	Sum of squares	df	p value	Coefficient estimate	Standard error	F value
Model	4.857E+009	27	0.0041	19995.27	2563.98	11.76
A	9.897E+007	1	0.0021	2312.83	1968.55	49.7
B	2.955E+008	1	0.0053	3989.95	1968.55	20.08
C	3.788E+007	1	0.0124	1430.80	1968.55	10.04
D	9.9920E+006	1	0.0134	−732.22	1968.55	32.63
E	1.830E+008	1	0.0001	3145.41	1968.55	15.06
F	7.138E+006	1	0.0244	621.15	1968.55	1.34
AB	1.353E+008	1	0.0061	−2849.29	2074.24	19.57
AC	1.562E+008	1	0.2321	3062.07	2074.24	0.81
AD	3.113E+008	1	0.0126	4322.13	2074.24	11.97
AE	2.914E+006	1	0.4421	−418.17	2074.24	0.55
AF	1.167E+005	1	0.0403	−83.70	2074.24	1.98
BC	5.052E+008	1	0.0093	5506.09	2074.24	12.54
BD	7.663E+006	1	0.0042	678.11	2074.24	2.62
BE	5.779E+007	1	0.0002	−1862.18	2074.24	3.21
BF	1.168E+008	1	0.0065	2647.28	2074.24	17.57
CD	4.738E+006	1	0.0036	−533.24	2074.24	20.12
CE	1.872E+008	1	0.2145	3351.46	2074.24	1.37
CF	9.117E+007	1	0.0003	−2339.07	2074.24	17.32
DE	3.217E+006	1	0.0074	439.34	2074.24	5.21
DF	3.978E+007	1	0.0256	−1545.12	2074.24	3.98
EF	1.216E+006	1	0.0001	270.17	2074.24	1.28
A²	5.006E+007	1	0.0215	1944.21	2326.81	6.02
B²	7.521E+007	1	0.0324	−2383.22	2326.81	8.32
C²	4.030E+008	1	0.0339	5516.38	2326.81	8.11
D²	9.377E+008	1	0.0031	8414.95	2326.81	41.39
E²	99503.63	1	0.0470	86.68	2326.81	2.21
F²	3.292E+007	1	0.0669	1576.79	2326.81	1.24
Residual	9.321E+008	13
Lack of fit	9.321E+008	7
Pure error	0.00	6
Core total	6.045E+009	41

^aSymbols A, B, C, D, E, F are the same as mentioned in Table 5

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