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Susceptibilities of bacterial cellulose containing N-acetylglucosamine residues for cellulolytic and chitinolytic enzymes.

Abstract：

:Detailed characterization of enzyme susceptibility of bacterial cellulose containing N-acetylglucosamine (GlcNAc) residues (N-AcGBC) which possess high susceptibility for cellulase and lysozyme and slight susceptibility for chitinase was studied. Turbidimetric lysozyme assay of N-AcGBC showed that (i) the susceptibilities of various N-AcGBCs for lysozyme were proportional to GlcNAc content, and (ii) N-AcGBC homogenates were divided into two groups based on the rate of turbidity reduction (not dependent on GlcNAc content). High reactivity of N-AcGBC for lysozyme would arise from fine microfibrils characteristic of bacterial cellulose (BC) and random distribution of GlcNAc residues in N-AcGBC because water soluble oligomers of N-AcGBC produced by lysozymic hydrolysis did not inhibit lysozyme activity; however, the random distribution of GlcNAc seemed to result in the slight susceptibility of N-AcGBC for chitinase. The rate of cellulolytic turbidity reduction of N-AcGBC was slower than that of BC, which arose from the inhibition for binding of cellulase by GlcNAc residues.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Ogawa R,Miura Y,Tokura S,Koriyama T

doi

10.1016/s0141-8130(05)80076-5

keywords:

subject

Has Abstract

pub_date

1992-12-01 00:00:00

pages

343-7

issue

6

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(05)80076-5

journal_volume

14

pub_type

杂志文章

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