Abstract In the present study, the enrichment and isolation of textile effluent decolorizing bacteria were carried out in wheat bran (WB) medium. The isolated bacterium Providencia rettgeri strain HSL1 was then tested for decolorization of textile effluent in consortium with a dyestuff degrading fungus Aspergillus ochraceus NCIM 1146. Decolorization study suggests that A. ochraceus NCIM 1146 and P. rettgeri strain HSL1 alone re moves only 6 and 32% of textile effluent American Dye Manufacturing Institute respectively in 30 h at 30 ±0.2°C of microaerophilic incubation, while the fungal-bacterial consortium does 92% ADMI removal within the same time period. The fungal-bacterial consortium exhibited enhanced decolorization rate due to the induction in activities of catalytic enzymes laccase (196%), lignin peroxidase (77%), azoreductase (80%) and NADH-DCIP reductase (84%). The HPLC analysis confirmed the biodegradation of textile effluent into various metabolites. Detoxification studies of textile effluent before and after treatment with fungal-bacterial consortium revealed reduced toxicity of degradation metabolites. The efficient degradation and detoxification by fungal-bacterial consortium pre-grown in agricultural based medium thus suggest a promising approach in designing low-cost treatment technologies for textile effluent.

中文翻译：

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探索真菌-细菌联合体在纺织废水低成本生物降解和解毒方面的潜力

摘要 本研究在麦麸（WB）培养基中对纺织废水脱色菌进行了富集和分离。分离的细菌Providencia rettgeri 菌株HSL1 然后与染料降解真菌Aspergillus ochraceus NCIM 1146 一起测试纺织品污水的脱色。脱色研究表明，A. ochraceus NCIM 1146 和P. rettgeri 菌株HSL1 单独仅移动32% 6 和纺织废水美国染料制造研究所分别在 30 小时内在 30 ±0.2°C 的微需氧培养中进行，而真菌-细菌聚生体在同一时间段内去除了 92% 的 ADMI。由于催化酶漆酶 (196%)、木质素过氧化物酶 (77%)、偶氮还原酶 (80%) 和 NADH-DCIP 还原酶 (84%)。HPLC 分析证实了纺织废水可生物降解为各种代谢物。用真菌-细菌聚生体处理前后纺织废水的解毒研究表明降解代谢物的毒性降低。因此，通过在农业培养基中预生长的真菌-细菌群落进行有效降解和解毒，为设计纺织废水的低成本处理技术提供了一种有前景的方法。