International Scholarly Research Notices / 2013 / Article / Tab 2

Research Article

Enhanced Cellulase Production from Bacillus subtilis by Optimizing Physical Parameters for Bioethanol Production

Table 2

(a) Analysis of variance (ANOVA) for alkaline CMCase activity (U/mL) in the optimization study, (b) analysis of variance (ANOVA) for cell growth (g/L) of Bacillus subtilis AS3 in the optimization study.
(a)

SourcedfSSAdj MS

Regression90.2613630.02904021.180.00095.02
Linear30.1543850.05146237.540.000
Square30.0868770.02895921.130.000
Interaction30.0201020.0067014.890.024
Residual error100.0137080.001371
Pure error50.0004040.000081
Total190.275071

(b)

SourcedfSSAdj MS

Regression96.309430.7010537.480.00097.12
Linear31.824180.6080632.510.000
Square34.368001.4560077.850.000
Interaction30.117250.039082.090.165
Residual error100.187020.01870
Pure error50.005080.00102
Total196.49645

df: degrees of freedom; SS: sum of squares; MS: mean sum of squares. : Fisher’s value (calculated by dividing the MS owing to the model by that due to error); : probability of incorrectly rejecting the null hypothesis when it is actually true.