Optimization of Polygalacturonase Production from a Newly Isolated Thalassospira frigidphilosprofundus to Use in Pectin Hydrolysis: Statistical Approach

Table 1

Ranges and levels of the factors in coded form for L₂₇OA.

Factors w/%	Symbol	Coded level
		−1	0	1
Orange peel	𝜒1	0.25	0.50	1.0
Bactopeptone	𝜒2	0.2	0.3	0.5
MgCl2	𝜒3	0.3	0.59	0.75
Ferric Citrate	𝜒4	0.005	0.01	0.03
CaCl2	𝜒5	0.1	0.18	0.24
NaCl	𝜒6	0.8	1.2	1.4