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环境病理学,毒理学和肿瘤学期刊
影响因子: 1.241 5年影响因子: 1.349 SJR: 0.519 SNIP: 0.613 CiteScore™: 1.61

ISSN 打印: 0731-8898
ISSN 在线: 2162-6537

环境病理学,毒理学和肿瘤学期刊

DOI: 10.1615/JEnvPathToxOncol.v23.i4.40
8 pages

Genotoxicity of Degradation Products of Textile Dyes Evaluated with rec-Assay After PhotoFenton and Ligninase Treatment

Ekta Choudhary
Department of Microbiology, Panjab University, Chandigarh - 160 014, India
Neena Capalash
Department of Biotechnology, Panjab University, Chandigarh, India
Prince Sharma
Department of Microbiology, Panjab University, Chandigarh - 160 014, India

ABSTRACT

Fourteen textile and biological dyes, belonging to the azo, triphenylmethane, anthraquinone, heterocyclic, oxazine, and methine/polymethine groups, were degraded using the PhotoFenton treatment (PFT) and the Phanerochaete chrysosporium crude ligninase enzyme (ED) treatment. The genotoxicity of the dyes and of their degradation products were assessed with the rec-assay. We found that the genotoxicity depended on the dye and on the method of degradation. In general, PFT was better than ED in decreasing the genotoxicity. Basic dyes showed complete or maximum loss of genotoxicity, whereas the vat group was more resistant. The azo group showed varied results. Crystal Violet was the only dye whose genotoxicity increased after PFT. Our results suggest that PFT and ED are two effective treatment methods to reduce the genotoxicity of dyes in waste waters.


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