Biodegradation of phenol by a moderately halophilic bacterial consortium

Chandrasekaran, S.; Pugazhendi, Arulazhagan; Banu, J. Rajesh; Ismail, Iqbal Mohammad Ibrahim; Qari, Huda A.

doi:10.1002/ep.12834

Cited by 20 publications

(7 citation statements)

References 32 publications

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“…The biological methods are mainly based on the application of microorganisms, which can transform phenol to harmless low-carbon compounds by their own metabolic system. The sustainable, efficient, and cost-effective cleaning technology has received increasing attention regarding the treatment of phenol-polluted environments (Rucka et al, 2017;Chandrasekaran et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Phenol Biodegradation in Antibiotic and Heavy Metal Resistant Acinetobacter lwoffii NL1

Qiu

Yang

et al. 2021

Front. Microbiol.

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Phenol is a common environmental contaminant. The purpose of this study was to isolate phenol-degrading microorganisms from wastewater in the sections of the Chinese Medicine Manufactory. The phenol-degrading Acinetobacter lwoffii NL1 was identified based on a combination of biochemical characteristics and 16S rRNA genes. To analyze the molecular mechanism, the whole genome of A. lwoffii NL1 was sequenced, yielding 3499 genes on one circular chromosome and three plasmids. Enzyme activity analysis showed that A. lwoffii NL1 degraded phenol via the ortho-cleavage rather than the meta-cleavage pathway. Key genes encoding phenol hydroxylase and catechol 1,2-dioxygenase were located on a megaplasmid (pNL1) and were found to be separated by mobile genetic elements; their function was validated by heterologous expression in Escherichia coli and quantitative real-time PCR. A. lwoffii NL1 could degrade 0.5 g/L phenol within 12 h and tolerate a maximum of 1.1 g/L phenol, and showed resistance against multiple antibiotics and heavy metal ions. Overall, this study shows that A. lwoffii NL1 can be potentially used for efficient phenol degradation in heavy metal wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Analysis of Phenol Biodegradation in Antibiotic and Heavy Metal Resistant Acinetobacter lwoffii NL1

Qiu

Yang

et al. 2021

Front. Microbiol.

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“…Ochrobactrum halosaudis observed to dominate the consortium with 60-70% occupancy followed by other strains. Previous reports also confirmed Ochrobactrum as potential PAHs and phenol degrading strain (Arulazhagan et al 2014;Pugazhendi et al 2017;Chandrasekaran et al 2018). The neighborhood distance relationship of the PAHs degrading potential halophilic strains was detailed, using MEGA v5 (Fig.…”

Section: Lab-scale Reactor Studymentioning

confidence: 76%

Degradation of petroleum hydrocarbons and treatment of refinery wastewater under saline condition by a halophilic bacterial consortium enriched from marine environment (Red Sea), Jeddah, Saudi Arabia

Jamal

Pugazhendi

2018

3 Biotech

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A halophilic bacterial consortium was enriched from Red Sea saline water and sediment samples collected from Abhor, Jeddah, Saudi Arabia. The consortium potentially degraded different low (above 90% for phenanthrene and fluorene) and high (69 ± 1.4 and 56 ± 1.8% at 50 and 100 mg/L of pyrene) molecular weight polycyclic aromatic hydrocarbons (PAHs) at different concentrations under saline condition (40 g/L NaCl concentration). The cell hydrophobicity (91° ± 1°) and biosurfactant production (30 mN/m) confirmed potential bacterial cell interaction with PAHs to facilitate biodegradation process. Co-metabolic study with phenanthrene as co-substrate during pyrene degradation recorded 90% degradation in 12 days. The consortium in continuous stirred tank reactor with petroleum refinery wastewater showed complete and 90% degradation of low and high molecular weight PAHs, respectively. The reactor study also revealed 94 ± 1.8% chemical oxygen demand removal by the halophilic consortium under saline condition (40 g/L NaCl concentration). The halophilic bacterial strains present in the consortium were identified as strain CEES1 (KX377976), strain CEES2 (KX377977), strain CEES3 (KX377978) and strain CEES4 (KX377979). Thus, the promising halophilic consortium was highly recommended to be employed in petroleum saline wastewater treatment process.

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“…Effects of various culture condition on biodegradation of phenol: (a) temperature, (b) pH, (c) Agitation speed, (d) and inoculation volume (Chen et al., 2019)…”

Section: Factors Affecting Phenolic Biodegradationmentioning

confidence: 99%

Effect of nutrient and culture conditions on enhanced biodegradation of phenolic pollutants: A review on recent development and future prospective

Priyadarshini

Mishra

Sahoo

et al. 2022

Environmental Quality Mgmt

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The rapid growth and development of industrial sectors releases massive amounts of phenolic contaminants into the aquatic environment. Bioremediation is a long‐term and cost‐effective way of removing phenolic contaminants from the environment. The success of bioremediation depends heavily on the biomass growth, enzymatic activities of microbial communities, their interactions, and other cellular metabolic activities related to phenolic degradation. Thus, the current review paper focuses on evaluating the microbial remediation of phenolic contaminants as well as the many challenges that come with it, with special reference to: (i) uses, occurrence of phenolic pollutants, and contamination levels; (ii) factors affecting phenolic biodegradation and biomass growth, such as the effect of temperature, pH, agitation speed, carbon sources, inoculum size, and age. The nutritional requirements for improved microbial growth and biodegradation of phenolic from contaminated environments were also highlighted, with a particular emphasis on the role of culture medium components and various redox mediators in phenolic compound removal. The efficiency of phenolic biodegradation has also been compared with a number of previously described advanced oxidation processes.

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Biodegradation of phenol by a moderately halophilic bacterial consortium

Cited by 20 publications

References 32 publications

Analysis of Phenol Biodegradation in Antibiotic and Heavy Metal Resistant Acinetobacter lwoffii NL1

Analysis of Phenol Biodegradation in Antibiotic and Heavy Metal Resistant Acinetobacter lwoffii NL1

Degradation of petroleum hydrocarbons and treatment of refinery wastewater under saline condition by a halophilic bacterial consortium enriched from marine environment (Red Sea), Jeddah, Saudi Arabia

Effect of nutrient and culture conditions on enhanced biodegradation of phenolic pollutants: A review on recent development and future prospective

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