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Chitinase‐Catalyzed Synthesis of a Chitin‐Xylan Hybrid Polymer: A Novel Water‐Soluble β (1 → 4) Polysaccharide Having an N ‐Acetylglucosamine‐Xylose Repeating Unit
Author(s) -
Kobayashi Shiro,
Makino Akira,
Tachibaoki,
Ohmae Masashi
Publication year - 2006
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200600082
Subject(s) - chitin , chitinase , xylan , polysaccharide , polymerization , chemistry , xylose , glucosamine , catalysis , polymer chemistry , organic chemistry , polymer , chitosan , enzyme , fermentation
Summary: A chitin‐xylan hybrid polysaccharide having β (1 → 4)‐linked alternating structure of N ‐acetyl‐ D ‐glucosamine and D ‐xylose was synthesized via chitinase‐catalyzed polymerization. An oxazoline derivative of D ‐xylosyl‐ β (1 → 4)‐ N ‐acetyl‐ D ‐glucosamine ( 1 ) was effectively polymerized by the catalysis of chitinase from Bacillus sp., giving rise to a water‐soluble chitin‐xylan hybrid polysaccharide ( 2 ) in good yields. Molecular weights ( $\overline M _{\rm n}$ ) of 2 reached 1 500, which corresponds to 8–10 saccharide units.A chitin‐xylan hybrid polysaccharide ( 2 ) synthesized via chitinase‐catalyzed polymerization.