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[article]
Titre : |
New antimicrobial complex of copper (II) with benzothiazole derivative : synthesis and application in leather industry |
Type de document : |
texte imprimé |
Auteurs : |
Haibin Gu, Auteur ; Xia Hao ; Changqing Zhao ; Wuyong Chen, Auteur |
Année de publication : |
2008 |
Article en page(s) : |
p. 114 - 118 |
Note générale : |
Bibliogr. |
Langues : |
Américain (ame) |
Index. décimale : |
675 Technologie du cuir et de la fourrure |
Résumé : |
Leather goods, especially leather shoes, are often damaged by microorganism and their antimicrobial performances are increasing demanded. However, the normal leather fungicides can not meet the requirement to the antimicrobial agents used in the leather goods; it is significant to develop an effective, harmless and broad-spectrum antimicrobial compound for leather goods. In this study, a novel ligand, 4-[(2-benzothiazolylimino) methyl] phenoxyacetic acid (HL), was prepared by 2-amino benzothiazole and 4-formyl phenoxyacetic acid in absolute ethyl alcohol and the copper complex was synthesized by HL and copper acetate in ethanol at 65℃. The chemical structures of the ligand and copper complex were characterized by elementary analysis, UV, IR, and 1H NMR. Results show that the copper ion coordinate with two oxygen atoms of phenoxyl and carboxyl in the ligand and two stable pentagonal rings are formed. The antimicrobial activity of the complex against representative species of bacteria and fungi isolated from leather shoes was assessed by the determination of minimal inhibitory concentrations (MICs). Results show that MICs of the copper complex were 100-200 mg L-1 to bacteria, 1-50 mg L-1 to moulds and 1 mg L-1 to yeasts, respectively. The copper complex with the concentration of 0.5-7.5 g L-1 in acetone was applied to shoe lining, and the inhibitory effects of the treated shoe lining were evaluated by inhibition zone method, plate culture medium method and inhibition ratio method. Results indicate that the shoe lining fabric containing more than 27.03 g kg-1 of the antimicrobial compound can form clear inhibition zones with diameters of 25-55 mm, inhibit the growth of microorganism after inoculated on plate culture mediums and achieve more than 90% inhibition ratio. So, the new complex is a potential compound as a leather antimicrobial agent. |
En ligne : |
https://drive.google.com/file/d/1K-T0iSwLq8C4bsR1vTFuFDv9oWWt8PCS/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2579 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 3 (03/2008) . - p. 114 - 118
[article]
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