Extraction Optimization, Preliminary Identification, and Bioactivities in Corn Silk

Table 5

The regression model analysis of variance.

Source	Sum of squares	df	Mean square	F value	value	Significance
Model	1.34	14	0.0956	28.08	<0.0001
A	0.025	1	0.025	7.35	0.0169
B	0.2028	1	0.2028	59.57	<0.0001
C	0.0302	1	0.0302	8.87	0.01
D	0.0936	1	0.0936	27.5	0.0001
AB	0.0035	1	0.0035	1.04	0.3251
AC	0.0025	1	0.0025	0.7197	0.4105
AD	0.0146	1	0.0146	4.3	0.057
BC	0.0039	1	0.0039	1.15	0.3022
BD	0.0036	1	0.0036	1.06	0.3212
CD	0.0009	1	0.0009	0.2644	0.6152
A^2	0.2357	1	0.2357	69.24	<0.0001
B^2	0.3953	1	0.3953	116.12	<0.0001
C^2	0.1176	1	0.1176	34.53	<0.0001
D^2	0.6441	1	0.6441	189.21	<0.0001
Residual	0.0477	14	0.0034
Lack of fit	0.0372	10	0.0037	1.42	0.3918
Pure error	0.0104	4	0.0026
Cor total	1.39	28

Note.  < 0.05, the difference is significant;  < 0.01, the difference is highly significant;  < 0.001, the difference is extremely significant.