Antibacterial Activity of Chitosan-Based Materials

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Published: Oct 11, 2023

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Fatiha Zaoui et al.

Abstract

Chitosan is a naturally occurring polymer with powerful antimicrobial properties against bacteria, yeasts and molds. The present work consists in developing chitosan-based materials and also in examining their in-vitro antimicrobial activities on commensal and pathogenic bacterial strains that are most often associated to a great extent with the microbiological deterioration of food. The bactericidal activity of these materials was investigated against two Gram-negative bacteria, i.e. E.coli ATCC25022 and Pseudomonas, and two Gram-positive bacteria, i.e. Bacillus ATCC29522 and Staphlococcus ATCC29422. The agar well diffusion method was used for the antibacterial study.


The results found showed that Gram-positive bacteria were more sensitive than Gram-negative ones to the action of chitosan. In addition, it turned out that the clay/chitosan material showed a large inhibition zone diameter (Q = 41 mm) on the strain of Escherichia coli ATCC 25022.

Article Details

Issue
Volume 9, Number 2, October 2023
Section
Articles
Author Biography

Fatiha Zaoui et al.

Fatiha Zaoui1, Fatima Zohra Choumane2, Deramchia Nawel3 , Ammam Abdelkader4, Belmamoun Ahmed Reda5

1Laboratory of Chemistry, Synthesis, properties and applications. University of Saida, Algeria,

/Laboratory of Separation and Purification Technology, PB 119, 13000, Tlemcen, Algeria

.Faculty of Sciences, Universityof Saida, Department of chemistryPB 139 MoulayTahar University of Saida 20000- Algeria  

2Department of Process engineering, Faculty of Technology.MoulayTahar University of Saida, Algeria.

/Laboratory of Inorganic Chemistry and Environment, Department of Chemistry, Faculty of

Sciences,University of Tlemcen - AbouBakrBelkaid, , Algeria.

3Laboratory of Structure, elaboration and application of molecular materials, University of Mostaganem 27000, Algeria.

4 Department of biology , Faculty of Sciences, University DrMoulayTahar , Saida .Algeria .

5Department of Agricultural Sciences, Faculty of Nature and Life Sciences, DjillaliLiabes University, Sidi-Bel-Abbes 22000, Algeria

*Corresponding authors: fatiha.zaoui@univ-saida.dz