Preparation and characterization of hydrophobic and hydrophilic amidated derivatives of carboxymethyl chitosan and carboxymethyl beta-glucan

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F20%3A43920790" target="_blank" >RIV/60461373:22330/20:43920790 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0141813020340174?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0141813020340174?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2020.07.257" target="_blank" >10.1016/j.ijbiomac.2020.07.257</a>

Result language

angličtina

Original language name

Preparation and characterization of hydrophobic and hydrophilic amidated derivatives of carboxymethyl chitosan and carboxymethyl beta-glucan

Original language description

Chitosan and beta-glucan are substances that are very widely used in the pharmaceutical and food industries, medicine and other areas. These polysaccharides have immense significance in human metabolism. They are able to affect the levels of cholesterol and lipids. Chemical modification of these polysaccharides allows the support of these attributes. A main goal is to prepare a group of amide derivatives of carboxymethyl chitosan and carboxymethyl beta-glucan to obtain a new group of polysaccharide derivatives and increase the benefits and attributes of these polysaccharides. The aim of carboxymethylation and subsequent two-step amidation is to achieve a high degree of substitution in the prepared derivatives. The amidation consisted methyl esterification followed by amino-de-alkoxylation with amidation reagents (n-alkylamines, hydrazine and hydroxylamine). The purity and substitution degree of the prepared derivatives were monitored by vibration spectroscopic methods (FTIR and FT Raman) and organic elemental analysis. The main, which was due to the presence of a secondary component (chitin) of polysaccharides, was the calculation of the substitution degree, which was based on the organic elemental analysis in combination with FTIR spectroscopy. These analytic methods confirmed the preparation of the substituted N-alkylamides, hydrazide and hydroxamic acid of carboxymethyl chitosan and carboxymethyl beta-glucan.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

International Journal of Biological Macromolecules

ISSN

0141-8130

e-ISSN

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Volume of the periodical

163

Issue of the periodical within the volume

Neuveden

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

1433-1443

UT code for WoS article

000579839600143

EID of the result in the Scopus database

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