Optimization and characterization of polyhydroxybutyrate produced by Halomonas meridiana using orange peel waste

Table 8 ANOVA results for response surface

Source	Sum of Squares	Df	Mean Square	F Value	P- Value
Model	25.497	9	2.833	187.927	< 0.0001
A- inoculum size	0.001	1	0.001	0.069	0.8008
B-(NH₄)₂HPO₄	0.007	1	0.007	0.474	0.5135
C-PH	0.061	1	0.061	4.063	0.0837
AB	0.403	1	0.403	26.706	0.0013
AC	0.476	1	0.476	31.582	0.0008
BC	0.270	1	0.270	17.937	0.0039
A²	14.022	1	14.022	930.131	< 0.0001
B²	4.002	1	4.002	265.446	< 0.0001
C²	4.004	1	4.004	265.582	< 0.0001
Residual	0.106	7	0.015
Lack of Fit	0.106	3	0.035
Pure Error	0.000	4	0.000
Cor Total	25.603	16

Determination coefficient R² = 0.9959; Adjusted determination R² = 0.9906; Coefficient of variation CV = 3.06%; model are significant

ISSN: 1471-2180