Formulation and Statistical Optimization of Culture Medium for Improved Production of Antimicrobial Compound by Streptomyces sp. JAJ06

Table 6

Statistical analysis of effects of medium constituents on antibiotic activity as per PBD.

Variables	Medium components	Effect	Standard error	𝑡-value	P value	Confidence level (%)
𝑋1	Starch	21.667	2.331	4.65	0.010	99.0
𝑋2	Yeast extract	−3.333	2.331	−0.72	0.514	48.6
𝑋3	Peptone	5.000	2.331	1.07	0.344	65.6
𝑋4	MgSO4	8.333	2.331	1.79	0.148	85.2
𝑋5	KBr	11.667	2.331	2.50	0.067	93.3
𝑋6	FeSO4·7H2O	1.100	2.331	0.24	0.825	17.5
𝑋7	CaCO3	16.133	2.331	3.46	0.026	97.4