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Table 7 Regression analysis for the production of β-glucosidase enzyme from B. subtilis RA10 for quadratic response surface model fitting (ANOVA)

From: Bioprospecting of novel thermostable β-glucosidase from Bacillus subtilis RA10 and its application in biomass hydrolysis

Source Sum of squares df Mean square F value P value Prob > F  
Model 1311.03 14 93.64 170.69 < 0.0001 Significant
A paddy straw 117.65 1 117.65 214.45 < 0.0001  
B beef extract 338.07 1 338.07 616.22 < 0.0001  
C PEG 6000 3.57 1 3.57 6.507 0.0254  
D NaNO3 277.96 1 277.96 506.65 < 0.0001  
AB 11.24 1 11.24 20.48 0.0007  
AC 103.34 1 103.34 188.36 < 0.0001  
AD 1.00 1 1.00 1.82 0.2019  
BC 0.00 1 0.00 0 1.0000  
BD 5.10 1 5.10 9.28 0.0101  
CD 3.25 1 3.25 5.92 0.0315  
A 2 31.86 1 31.86 58.06 < 0.0001  
B 2 35.85 1 35.85 65.34 < 0.0001  
C 2 60.89 1 60.89 110.99 < 0.0001  
D 2 175.65 1 175.65 320.17 < 0.0001  
Residual 6.58 12 0.548615    
Lack of fit 6.58 10 0.658337   0.08 Not significant
Pure error 0.00 2 0