Characterization and optimization of exopolysaccharide extracted from a newly isolated halotolerant cyanobacterium, Acaryochloris Al-Azhar MNE ON864448.1 with antiviral activity

Table 3 Statistical analysis of Plackett–Burman design for polysaccharide production from A. Al-Azhar MNE ON864448.1

Factor	Coefficient estimate	Stdized effect	% Contribution
Intercept	0.4896	–	–
A-NaHCO₃	0.0025	0.0049	0.023
B-NaNO₃	0.0040	0.008	0.062
C-K₂HPO₄	−0.0614	−0.1227	14.3
D-MgSO₄.7H₂O	0.0020	0.004	0.015
E-CaCl₂	0.0544	0.1089	11.29
F-Citric acid	−0.0002	−0.00041	0.00016
G-Ferric ammonium citrate	0.0027	0.0054	0.027
H-EDTA	0.0705	0.14	18.9
J-Trace metal	0.0023	0.0046	0.021
K-NaCl	0.0528	0.105	10.64
L-Temperature	−0.0018	−0.0035	0.0119
M-pH	−0.0013	−0.0025	0.0063
N-working volume	0.0896	0.179	30.64
O-Inoculum size	0.0594	0.118	13.45

ISSN: 1475-2859