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Table 5 Chitinase activity from the experimental design for the response surface quadratic model

From: Statistical optimization of chitinase production by Streptomyces rubiginosus SP24 and efficacy of purified chitinase to control root-knot nematode infection in Vigna radiata under controlled conditions

Std. order Colloidal chitin Xylose Peptone Dihydrogen potassium phosphate C.Aa C.Ab
1 0.1 1.1 1 0.25 2.32 2.13
2 0.55 0.2 1 0.25 2.76 2.49
3 0.55 2 0.6 0.1 2.92 2.82
4 0.55 1.1 0.6 0.25 2.12 2.52
5 0.55 0.2 0.6 0.1 1.56 1.88
6 0.55 1.1 0.6 0.25 2.18 2.52
7 0.55 1.1 0.2 0.4 1.96 2.25
8 1 1.1 1 0.25 3.96 3.78
9 0.1 1.1 0.6 0.1 1.68 1.52
10 1 0.2 0.6 0.25 2.38 2.87
11 0.55 0.2 0.2 0.25 1.28 1.61
12 0.1 1.1 0.6 0.4 1.76 1.86
13 0.1 1.1 0.2 0.25 1.62 1.25
14 0.55 2 1 0.25 3.52 3.43
15 0.55 2 0.6 0.4 2.98 3.16
16 0.55 1.1 0.6 0.25 1.92 2.52
17 0.1 0.2 0.6 0.25 1.38 1.22
18 1 2 0.6 0.25 4.28 3.81
19 0.55 2 0.2 0.25 2.78 2.55
20 1 1.1 0.2 0.25 2.56 2.9
21 0.1 2 0.6 0.25 1.24 2.16
22 1 1.1 0.6 0.1 2.72 3.17
23 0.55 1.1 1 0.4 2.82 3.13
24 0.55 0.2 0.6 0.4 2.72 2.22
25 0.55 1.1 0.2 0.1 2.62 1.91
26 0.55 1.1 0.6 0.25 3.48 2.52
27 0.55 1.1 1 0.1 2.72 2.79
28 0.55 1.1 0.6 0.25 2.82 2.52
29 1 1.1 0.6 0.4 4.02 3.51
  1. C.Aa = actual chitinase activity (U/ml) C.Ab = predicted chitinase activity (U/ml)