Sustainable biosurfactant produced by Serratia marcescens UCP 1549 and its suitability for agricultural and marine bioremediation applications

Table 3 Estimated regression coefficients and corresponding t_exp and significance levels for the surface tension

Coefficient	Value	Standard deviation	t _exp	p
b ₀	30.1433	0.0652	462.2643	0.0000
b ₁	2.8763	0.0799	36.0147	0.0001
b ₂	− 3.1786	0.0799	− 39.8025	0.0000
b ₃	− 0.7638	0.0799	− 9.5632	0.0024
b ₁₂	− 1.6988	0.0799	− 21.2708	0.0002
b ₁₃	− 0.9688	0.0799	− 12.1301	0.0012
b ₂₃	1.1613	0.0799	14.5405	0.0007
b ₁₂₃	0.9363	0.0799	11.7232	0.0013

ISSN: 1475-2859