TABLE 3.

The statistical analysis of the RCCD data of amino acids, generated by B. paramycoides ZW-5, shows the coded regression coefficient and ANOVA.

Source	Regression coefficient	Freedom degree	Sum of square	Mean square	F-value	p-value
Model	1626.0	9	3,596,326	399,592	195.01	<0.001∗
Linear		3	529,964	176,655	86.21	<0.001∗
KH2PO4	−71.9	1	141,171	141,171	68.90	<0.001∗
NH4Cl	−72.1	1	142,066	142,066	69.33	<0.001∗
Time	95.0	1	246,727	246,727	120.41	<0.001∗
Square		3	2,946,040	982,013	479.25	<0.001∗
(KH2PO4)2	−255.2	1	1,876,924	1,876,924	916.00	<0.001∗
(NH4Cl)2	−165.0	1	784,391	784,391	382.81	<0.001∗
(Time)2	−168.7	1	820,091	820,091	400.23	<0.001∗
Two-way interaction		3	120,322	40,107	19.57	<0.001∗
KH2PO4 × NH4Cl	−49.4	1	39,115	39,115	19.09	<0.001∗
KH2PO4 × Time	23.2	1	8,644	8,644	4.22	0.049∗
NH4Cl × Time	67.3	1	72,563	72,563	35.41	<0.001∗
Error		30	61,472	2,049
Lack-of-Fit	–	5	16,101	3,220	1.77	0.155ns
Pure Error	–	25	45,371	1,815	–	–
Total		39	3,657,797	–	–	–
The goodness-of-fit statistics of the model
Standard deviation					45.27
Coefficient of determination (R2)					98.32
Adjusted-R2					97.82
Predicted-R2					97.41
Predicted residual error sum of squares					94,688.50

*Significant term, ^ns insignificant term.