Depolymerization and De-N-acetylation of Chitin Oligomers in Hydrochloric Acid
✍ Scribed by Einbu, Aslak; Vårum, Kjell M.
- Book ID
- 121182417
- Publisher
- American Chemical Society
- Year
- 2007
- Tongue
- English
- Weight
- 137 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1525-7797
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
A simple and rapid method for the quantitative determination of N-acetyl groups in chitin-chitosan samples consists of an acid hydrolysis conducted at high temperature with a mixture of sulfuric and oxalic acids. The acetic acid formed is determined by spectrophotometry at 210 nm after separation fr
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
## Abstract Functional properties of the amino polysaccharides, chitin and chitosan, vary significantly with their acetyl content. The acid hydrolysis‐HPLC method offers good accuracy and precision to assay the acetyl content regardless of the solubility of the sample. In this research, the hydroly