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Table 2 R2, lack of fit, p-value, coefficients and effects on quadratic model to responses obtained of biomass and EPS

From: Influence of culture conditions on the production of extracellular polymeric substances (EPS) by Arthrospira platensis

Source

Biomass yield

EPS

Coefficient

p-value

Coefficient

p-value

Model

 

0.0379

 

0.0164

A—NaNO3

0.0755

0.1325

8

0.1846

B—PFD

0.0892

0.0856

− 15.67

0.0261

NaNO3 ×  PFD

0.0138

0.8045

17.75

0.0349

NaNO3 ×  NaNO3

0.0244

0.7209

12.88

0.1590

PFD ×  PFD

− 0.2646

0.0066

24.88

0.0209

R2

0.8060

0.8563

Lack of fit

0.0006

0.0139

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