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Table 4 Substrate specificity of CmChi1

From: Molecular characterization of a novel chitinase CmChi1 from Chitinolyticbacter meiyuanensis SYBC-H1 and its use in N-acetyl-d-glucosamine production

Substrate

Specific activity (U/mg)

CC

15.3 ± 0.3

Chitin powder

1.1 ± 0.05

CMC

0

Hemicellulose

0

Amylose

0

Chitosana

0.3 ± 0.02

p-NP-GlcNAc

0.2 ± 0.01

p-NP-(GlcNAc)2

27.3 ± 0.6

(GlcNAc)2

0.5 ± 0.03

(GlcNAc)3

38.4 ± 0.8

(GlcNAc)4

83.3 ± 3.1

(GlcNAc)5

180.7 ± 1.6

(GlcNAc)6

121.4 ± 1.7

  1. aThe degree of deacetylation of chitosan used was 85%