Development and characterization of a halo-thermophilic bacterial consortium for decolorization of azo dye

Guo, Guanhua; Liu, Chong; Hao, Jiuxiao; Tian, Fang; Ding, Keqiang; Zhang, Can; Yang, Feng; Liu, Tingfeng; Xu, Jin; Zhang, Guan

doi:10.1016/j.chemosphere.2021.129916

Cited by 54 publications

(23 citation statements)

References 32 publications

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“…The phytotoxicity of intermediates showed no signi cant difference with the distilled water 7 days after cultivation, indicating that no biotoxic intermediate was accumulated 7 days after degradation. The biotoxicity in the metabolic intermediate showed similar trend with intermediate produced by phenanthrene treatment by laccase (Wulandari et al, 2021) and an azo dye decolorizing consortium reported by Guo et al (Guo et al, 2021). The phytotoxicity text results show that consortium 5H has an environmental friendly potential for PAH elimination in hypersaline environments.…”

Section: Phytotoxicity Of Metabolic Intermediates Produced By Consortium 5hsupporting

confidence: 82%

Degradation of Polycyclic Aromatic Hydrocarbons by Consortium 5H Under Hypersaline Conditions

Jin

Zhang

Han

et al. 2021

Preprint

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PAHs were widely detected accumulated in saline and hypersaline environments. The halotolerant and halophilic microbes were considered as the most suitable player for the elimination of PAHs in such environments. In this study, consortium 5H was enriched under 5% salinity that was able to completely degrade phenanthrene in 5 days. By high-throughput sequencing, consortium 5H was identified mainly composed of Methylophaga, Marinobacter and Thalassospira. Combined with the investigation of intermediates and enzymatic activities, the degradation pathway of consortium 5H on phenanthrene was proposed. Meanwhile, consortium 5H was identified with ability to tolerate a wide range of salinity (1% to 10%) and initial PAHs concentration (50 mg/L to 400 mg/L). It was also able to work under neutral to week alkaline conditions (pH from 6 to 9) and the phytotoxicity of the produced intermediates showed no significant difference with distilled water. This study expanded the knowledge of PAH-degradation under hypersaline environments and consortium 5H was proposed with a good potential for the elimination of PAHs pollution under saline/hypersaline environments.

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Section: Phytotoxicity Of Metabolic Intermediates Produced By Consortium 5hsupporting

confidence: 82%

Degradation of Polycyclic Aromatic Hydrocarbons by Consortium 5H Under Hypersaline Conditions

Jin

Zhang

Han

et al. 2021

Preprint

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“…They account for more than 50% of all dyes synthesized. 4,5 The molecular structure of azo dyes is characterized generally by one or more azo groups (-N]N-), which are the chromophore. Due to the chemical structure, large quantities of colored effluents are generated by the textile industry, which are a difficult to degrade and are highly toxic to the aquatic environment.…”

Section: Introductionmentioning

confidence: 99%

Biochemical characterization of a novel azo reductase named BVU5 from the bacterial flora DDMZ1: application for decolorization of azo dyes

et al. 2022

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“…(Pearce et al 2003; Forgacs et al 2004; Lalnunhlimi and Veenagayathri 2016). Bacillus was shown to be dominant and decolorize the metanil yellow G (MYG) at temperatures ranging from 40 to 60ºC in a wide range of pH conditions in a study on the establishment of a halo-thermophilic Bacterial consortium for dye decolorization (Guo et al 2021). Therefore, biological treatment for dye decolourization and degradation plays an important role in the cleaning of environment pollution (Abbas et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Screening and Identification of Azo Dye Decolourizers from Mangrove Rhizospheric soil

Modi

Singh

Patki

et al. 2022

Preprint

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Removal of synthetic textile dye poses a challenge to the textile industry and a threat to environment flora and fauna. These dyes are marginally degradable and recalcitrant, hence alternatives to physical and chemical techniques like various bioremediation studies involving plants, plant roots, single or consortium of microbes have been used as environment friendly methods for the removal of textile dye. In the present study potent bacteria for dye decolourization were isolated from rhizospheric soil collected from Kamothe, Navi Mumbai, India. Of the 20 isolates obtained after enrichment, seven isolates were used for further screening of efficient decolourization ability in MBM media containing 10% glucose, 2.5 % trace metal solution and 0.1% of MO dye concentration. Physiological parameters to optimize the decolourization of dye at optimum pH, temperature and incubation time was studied for all the seven isolates. UV-vis and Fourier Transform Infrared spectroscopy were used to investigate dye decolorization. The seven isolates were characterized morphologically, biochemically, and molecular identification of these strains were performed by 16S rRNA sequence analysis. The isolates were identified as Bacillus paramycoides, Pseudomonas taiwanensis, Citrobacter murliniae, Acinetobacter pitti, Exiguobacterium acetylicum, Psychrobacter celer, and Aeromonas taiwanensis. Out of these Aeromonas taiwanensis has shown exceptional capacity by 100% decolorization of azo dye in minimum time.

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Development and characterization of a halo-thermophilic bacterial consortium for decolorization of azo dye

Cited by 54 publications

References 32 publications

Degradation of Polycyclic Aromatic Hydrocarbons by Consortium 5H Under Hypersaline Conditions

Degradation of Polycyclic Aromatic Hydrocarbons by Consortium 5H Under Hypersaline Conditions

Biochemical characterization of a novel azo reductase named BVU5 from the bacterial flora DDMZ1: application for decolorization of azo dyes

Screening and Identification of Azo Dye Decolourizers from Mangrove Rhizospheric soil

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