Chitinase-Catalyzed Synthesis of a Chitin-Xylan Hybrid Polymer: A Novel Water-Soluble β(1 → 4) Polysaccharide Having an N-Acetylglucosamine-Xylose Repeating Unit
✍ Scribed by Shiro Kobayashi; Akira Makino; Naoki Tachibana; Masashi Ohmae
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 161 KB
- Volume
- 27
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
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.
magnified imageA chitin‐xylan hybrid polysaccharide (2) synthesized via chitinase‐catalyzed polymerization.