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. 2013 Jan 30;14(2):2875–2902. doi: 10.3390/ijms14022875

Table 5.

Analysis of variance (ANOVA) for the second order polynomial models, and coefficient values for β-glucosidase, β-xylosidase and xylanase production by C. graminicola.

Source β-glucosidase β-xylosidase Xylanase

df SS MS F p df SS MS F p df SS MS F p
M 9 14,792.38 1,578.15 7.08 0.0039 9 8,927.015 991.89 6.17 0.0191 20 402,029.4 20,101.47 3.40 0.0402
R 8 1,452.74 165.89 6 964.563 160.76 - - 8 47,279.11 5,909.89 - -
LF 5 1,093.82 179.63 1.94 0.0643 6 1,441.22 240.204 99.258 0.0766 7 53,966.3 3,597.8 19.12 0.0507
PE 3 3.17 10.3 - - 1 2.42 0.5 - - 2 376.3 188.2 - -

Effects Coefficient p-value Effects Coefficient p-value Effects Coefficient p-value

Intercept 182.19 0.0009 c Intercept −1732.78 0.0146 a Intercept 373.94 0.0004 c
X −7.39 0.1985 w −5.51 0.2404 x −36.80 0.0223 a
x2 −9.45 0.0198 a w2 −3.56 0.0202 a x2 −195.67 0.0008 c
Y 11.41 0.1429 y 376.92 0.0144 a y 61.96 0.0080 a
y2 −66.88 0.0009 a y2 −21.76 0.0015 b y2 −113.16 0.0023 b
Z 17.47 0.0667 z 359.70 0.0185 a z 91.43 0.0037 b
z2 −32.69 0.0087 a z2 −48.12 0.0196 a z2 −112.32 0.0024 b
- - - wz 5.14 0.0339 a k −3.65 0.5807
- - - yz 4.00 0.0416 a k2 −26.04 0.0423 a
- - - s −24.45 0.0486 a
s2 −35.44 0.0235 a
- - - - - - xz 40.33 0.0277 a

Notes: β-glucosidase: R2 = 0.99; F listed 5% = 3.35; β-xylosidase: R2 = 0.90; F listed 5% = 3.22; Xylanase: R2 = 0.88; F listed 5% = 2.64, M = Model; R = residual; LF = Lack of fit; PE = Pure error; df: degrees of freedom; SS: sum of squares; MS: mean square. x: temperature (°C); y: time (days); z: initial moisture (mL g−1); w: peanut hulls concentration (%, w/w); k: milled corncob (%, w/w); s: ammonium sulfate concentration (%, w/w).

a

p ≤ 0.05;

b

p ≤ 0.005;

c

p ≤ 0.001