Novel Chitosan-Based Schiff Base Compounds: Chemical Characterization and Antimicrobial Activity

被引：22
|
作者：
Fontana, Riccardo [1 ]
Marconi, Peggy Carla Raffaella [1 ]
Caputo, Antonella [1 ]
Gavalyan, Vasak B. [2 ]
机构：
[1] Univ Ferrara, Dept Chem Pharmaceut & Agr Sci, Via Fossato Mortara 64b, I-44121 Ferrara, Italy
[2] Yerevan Phys Inst, AI Alikhanyan Natl Sci Lab, 2 Alikhanyan Bros St, Yerevan 0036, Armenia
来源：
MOLECULES | 2022年 / 27卷 / 09期
关键词：
chitosan; chitosan-based Schiff base; antibacterial activity; antifungal activity; MOLECULAR-WEIGHT; COMPLEXES;
D O I：
10.3390/molecules27092740
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Chitosan (CS) and its derivatives are receiving considerable attention for their great biocompatibility and broad-spectrum activities in many fields. In this work, we aimed to characterize the antimicrobial activity of novel chitosan Schiff bases (CSSB). CS was synthesized by double deacetylation of chitin (Cn) after its extraction from the armors of crustaceans Astacus leptodactylus, and CSSB-1 and CSSB-2 were synthesized by interaction of CS with 4-(2-chloroethyl) benzaldehyde (aldehyde-1) and 4-(bromoethyl) benzaldehyde (aldehyde-2), respectively, at room temperature. The synthesized compounds were characterized by elemental analysis, gel permeation chromatography (GPC), infrared spectroscopy (FTIR), thermogravimetry (TG), and differential scanning calorimetry (DSC). The antimicrobial activity against Gram-positive (Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa) bacteria and against yeasts (Candida albicans) was significantly increased due to their higher solubility as compared to unmodified CS opening perspectives for the use of these compounds for antimicrobial prevention in different fields as, for example, food industry, cosmetics, or restoration.
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页数：12
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