Electronic Journal of Biotechnology ISSN: 0717-3458
  © 2007 by Universidad Católica de Valparaíso -- Chile
Vol. 10 No. 4, Issue of October 15, 2007
 


Table 3. Effects estimates, standard error, Student's t-test and p-test calculated for the 26-2 fractional factorial design.


 

MTGase activity (U/mL)

Effect

Std. Err.

t-value

p-value

 Mean/Inter.

0.3195*

0.0061

52.5191

0.0004

 Powered soy (%)

0.0943*

0.0133

7.1101

0.0192

 Potato starch (%)

0.0384

0.0133

2.8980

0.1013

 Peptone (%)

-0.0388

0.0133

-2.9244

0.0997

 KH2PO4 (%)

0.1706*

0.0133

12.8675

0.0060

 MgSO4.7H2O (%)

-0.1207*

0.0133

-9.1024

0.0118

 Glucose (%)

-0.0446

0.0133

-3.3609

0.0783

*significant factors (p < 0.05)