202

Chitin and chitosan should be considered as derivatives of cellulose. The basis
for such an approach to these polysaccharides is their chemical structure. The macromolecular
chains of these polymers are formed by glucopyranose cycles, which, being connected by β-
(1→4) glucosidic bonds, form linear polymer chains. The biological functions and mechanical
properties of these polysaccharides are largely determined by the conformation of
macromolecules and the distribution of reactive groups in them. Due to the unique properties
of chitin and chitosan, they are becoming increasingly important in the practical and especially
in the medical and biological activities of mankind. The aim of this work is to obtain chitin from
Apis Mellifera, obtaining chitosan from chitin, synthesis of the Schiff base chitosan with acetic,
salicylic, o - methoxy - p -hydroxy benzaldehyde and dialdehyde gossypol, study of the
composition and individuality of the obtained products using IR spectroscopy methods.
 

  • Web Address
  • DOI
  • Date of creation in the UzSCI system 13-01-2023
  • Read count 202
  • Date of publication 13-01-2023
  • Main LanguageIngliz
  • Pages24-29
English

Chitin and chitosan should be considered as derivatives of cellulose. The basis
for such an approach to these polysaccharides is their chemical structure. The macromolecular
chains of these polymers are formed by glucopyranose cycles, which, being connected by β-
(1→4) glucosidic bonds, form linear polymer chains. The biological functions and mechanical
properties of these polysaccharides are largely determined by the conformation of
macromolecules and the distribution of reactive groups in them. Due to the unique properties
of chitin and chitosan, they are becoming increasingly important in the practical and especially
in the medical and biological activities of mankind. The aim of this work is to obtain chitin from
Apis Mellifera, obtaining chitosan from chitin, synthesis of the Schiff base chitosan with acetic,
salicylic, o - methoxy - p -hydroxy benzaldehyde and dialdehyde gossypol, study of the
composition and individuality of the obtained products using IR spectroscopy methods.
 

№ Author name position Name of organisation
1 A S.M. teacher TSTU
2 G A.I. teacher TSTU
№ Name of reference
1 K.G. Scriabin., S.N. Mikhailova., V.P. Varlamov. Chitosan edited by Moscow: “Center Bioengineering”, 2013. 593.
2 K.G. Scriabin., G.A. Vikhoreva., V.P. Varlamov. “Chitin and chitosan: obtaining, properties and application”, 2002. 368
3 G.A. Ikhtiyarova. Obtaining, properties and application of biodegradable polymers of chitin and chitosan. Monograph. “Standard polygraph”, 2017. 96.
4 T. Wu., S. Zivanovic., F.A. Draughon. Physicochemical properties and bioactivity of fungal chitin and chitosan. “Journal of agricultural and food chemistry”, 2005. 3888
5 Y. Dua. Preparation of modified chitosan by salicylaldehyde. “International conference on electronic & mechanical engineering and information technology”, 2011. 2908
6 W.R. Jenks., M.E. Volpina. Mechanism and catalysis of simple reactions of the carbonyl group. “Modern problems of physical organic chemistry”, 1967. 342.
7 K. Ingold. “Theoretical foundations of organic chemistry”, 1993. 1056.
8 V.N. Syutkin., B.I. Dudrov., V.V. Gromova., S.I. Danilov. To the question of the study of the reaction mechanism of cellulose cyanoethylation. “Cellul. Chem. and Technology”, 1996. 133
9 A.S. Mengliev., G.A. Ikhtiyarova., F.L. Khamidullaev. Preparation of the Schiff base based on chitosan Apis Mellifera with dialdehyde gossypolam. Republican scientific and practical conference. “Trends in the development of science and education in the field of chemical technology”, 2022. 101.
10 A.S. Mengliev., G.A. Ikhtiyarova., F.L. Khamidullaev. Obtaining the Schiff base based on chitosan Apis Mellifera with aldehydes. International scientific and practical conference on the topic. “The role of innovative equipment and technologies in ensuring environmental stability”, 2022.75
11 A.Kh. Tukhsanov. Synthesis, structure, interferon-inducing and antiviral activity of derivatives of heterocyclic and aromatic amino compounds. “Abstract. Diss. candidate of chemical sciences”, 1999
12 J.E. Santos., E.R. Dockal., E.T. Cavalheiro. Synthesis and characterization of Schiff bases fromchitosan and salicylaldehyde derivatives. “Carbohydr. Polymer”, 2005. 277
13 S. Sashikala., S.S. Shafi. Synthesis and characterization of chitosan Shiff base derivatives. “Der Pharmacia Lettre”, 2014. 90.
14 N.F. Khabibullaeva., N.A. Sidikova., A.Kh. Khaitbaev. Obtaining chitosan and its derivatives based on Apis mellifera. “Universum: chemistry and biology”, 2021. 211.
Waiting