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Distribution of the acetamide group in partially deacetylated chitins

✍ Scribed by Hitoshi Sashiwa; Hiroyuki Saimoto; Yoshihiro Shigemasa; Ryu Ogawa; Seiichi Tokura

Book ID
107895157
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
269 KB
Volume
16
Category
Article
ISSN
0144-8617

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πŸ“œ SIMILAR VOLUMES

N-Acetyl group distribution in partially
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The distribution of N-acetyl group in partially deacetylated chitin (DA-chitin) was investigated by nitrous acid deamination. Most deamination products of various DA-chitins (over 50% of deacetylation), prepared under homogeneous conditions, were oligomers of less than six units. These results would

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The binding of chrome violet, which is a monoazo dye and involves two hydroxyl groups in the o and 0 ' positions to an azo group, to chitin, and partially deacetylated chitin, was examined in the presence of metal ions. Zn2+ and Cu2+ ions do not perceptively influence the binding affinity of chrome

Determination of the degree of N-acetyla
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The composition and sequence of 2-acetamido-2-deoxy-beta-D-glucose (GlcNAc) and 2-amino-2-deoxy-beta-D-glucose (GlcN) residues in partially N-deacetylated chitosans, prepared under homogeneous and heterogeneous conditions, have been determined by 1H-n.m.r. spectroscopy. It was necessary to depolymer