ArticleInternational journal of molecular sciences2011
Efficient H-NMR quantitation and investigation of N-acetyl-d-glucosamine (GlcNAc) and N,N'-diacetylchitobiose (GlcNAc)(2) from chitin.
Article in International journal of molecular sciences, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed.
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- Cyanovirin-N Binding toBiochemistry · 2024Article
- Activity of a Recombinant Chitinase of thePolymers · 2024Article
- Application of Band-Selective HSQC NMR in Species Discrimination and Adulteration Identification ofMolecules (Basel, Switzerland) · 2023Article
- A cross-sectional natural history study of aspartylglucosaminuria.JIMD reports · 2022Article
- Use of Raman and Raman optical activity to extract atomistic details of saccharides in aqueous solution.PLoS computational biology · 2022Article
- Antimicrobial Activity of Chitosan Oligosaccharides with Special Attention to Antiparasitic Potential.Marine drugs · 2021Article
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Abstract
A quantitative determination method of N-acetyl-d-glucosamine (GlcNAc) and N,N'-diacetylchitobiose (GlcNAc)(2) is proposed using a proton nuclear magnetic resonance experiment. N-acetyl groups of GlcNAc and (GlcNAc)(2) are chosen as target signals, and the deconvolution technique is used to determine the concentration of the corresponding compound. Compared to the HPLC method, (1)H-NMR spectroscopy is simple and fast. The method can be used for the analysis of chitin hydrolyzed products with real-time analysis, and for quantifying the content of products using internal standards without calibration curves. This method can be used to quickly evaluate chitinase activity. The temperature dependence of (1)H-NMR spectra (VT-NMR) is studied to monitor the chemical shift variation of acetyl peak. The acetyl groups of products are involved in intramolecular H-bonding with the OH group on anomeric sites. The rotation of the acetyl group is closely related to the intramolecular hydrogen bonding pattern, as suggested by the theoretical data (molecular modeling).
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