Optimization of Large-Scale Culture Conditions for the Production of Cordycepin with Cordyceps militaris by Liquid Static Culture

Table 7

ANOVA for response surface quadratic polynomial model for carbon sources and inorganic salts.

Source	Sum of quares	df	Mean Square	𝐹-value	𝑃-value Prob > 𝐹
Model	6.507𝐸+005	9	72300.77	9.21	0.0009^∗∗
𝑋1-𝑋1	1.337𝐸+005	1	1.337𝐸+005	17.03	0.0021^∗∗
𝑋4-𝑋4	13504.30	1	13504.30	1.72	0.2190
𝑋6-𝑋6	36477.48	1	36477.48	4.65	0.0565
𝑋1𝑋4	2282.55	1	2282.55	0.29	0.6016
𝑋1𝑋6	3356.89	1	3356.89	0.43	0.5279
𝑋4𝑋6	44.38	1	44.38	5.653𝐸−003	0.9416
𝑋1^2	1.620𝐸+005	1	1.620𝐸+005	20.63	0.0011^∗∗
𝑋4^2	43685.18	1	43685.18	5.56	0.0400^∗∗
𝑋6^2	3.256𝐸+005	1	3.256𝐸+005	41.47	<0.0001**
Residual	78513.73	10	7851.37
Lack of Fit	61670.32	5	12334.06	3.66	0.0903
Pure Error	16843.41	5	3368.68
Cor Total	7.292𝐸+005	19

𝑅²=0.8923; CV = 7.34%; Pred-𝑅² = 0.3183; Adj-𝑅² = 0.7954; Adeq Precision = 8.173; *5% significance level; **1% significance level.