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Biodegradation of Various Aromatic Compounds by Enriched Bacterial Cultures: Part A–Monocyclic and Polycyclic Aromatic Hydrocarbons
, , Akashdeep Singh Oberoi
Published in Humana Press Inc.
2015
PMID: 26054614
Volume: 176
   
Issue: 7
Pages: 1870 - 1888
Abstract

Present study focused on the screening of bacterial consortium for biodegradation of monocyclic aromatic hydrocarbon (MAH) and polycyclic aromatic hydrocarbons (PAHs). Target compounds in the present study were naphthalene, acenaphthene, phenanthrene (PAHs), and benzene (MAH). Microbial consortia enriched with the above target compounds were used in screening experiments. Naphthalene-enriched consortium was found to be the most efficient consortium, based on its substrate degradation rate and its ability to degrade other aromatic pollutants with significantly high efficiency. Substrate degradation rate with naphthalene-enriched culture followed the order benzene > naphthalene > acenaphthene > phenanthrene. Chryseobacterium and Rhodobacter were discerned as the predominant species in naphthalene-enriched culture. They are closely associated to the type strain Chryseobacterium arthrosphaerae and Rhodobacter maris, respectively. Single substrate biodegradation studies with naphthalene (PAH) and benzene (MAH) were carried out using naphthalene-enriched microbial consortium (NAPH). Phenol and 2-hydroxybenzaldehyde were identified as the predominant intermediates during benzene and naphthalene degradation, respectively. Biodegradation of toluene, ethyl benzene, xylene, phenol, and indole by NAPH was also investigated. Monod inhibition model was able to simulate biodegradation kinetics for benzene, whereas multiple substrate biodegradation model was able to simulate biodegradation kinetics for naphthalene. © 2015, Springer Science+Business Media New York.

About the journal
JournalApplied Biochemistry and Biotechnology
PublisherHumana Press Inc.
ISSN02732289
Open AccessNo
Concepts (77)
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    Anthracene
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    Aromatic compounds
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    Aromatic hydrocarbons
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    Aromatization
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    Benzene
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    Biodegradation
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    Degradation
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    Hydrocarbons
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    Kinetics
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    Microbiology
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    Naphthalene
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    Phenols
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    Substrates
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    ACCLIMATIZED MIXED CULTURES
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    BIODEGRADATION KINETICS
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    BIODEGRADATION MODEL
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    BIODEGRADATION STUDIES
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    MONOCYCLIC AROMATIC HYDROCARBONS
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    Polycyclic aromatic hydrocarbons (pahs)
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    SCREENING EXPERIMENTS
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    SUBSTRATE DEGRADATION
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    Polycyclic aromatic hydrocarbons
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    Acenaphthene derivative
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    Aromatic compound
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    Ethylbenzene
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    Indole
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    MONOCYCLIC AROMATIC HYDROCARBON
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    Phenanthrene
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    Phenol
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    Polycyclic aromatic hydrocarbon derivative
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    Salicylaldehyde
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    Toluene
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    Unclassified drug
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    Xylene
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    Polycyclic aromatic hydrocarbon
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    RNA 16S
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    Water pollutant
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    Article
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    Bacterium culture
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    Bioremediation
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    CHRYSEOBACTERIUM
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    CHRYSEOBACTERIUM ARTHROSPHAERAE
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    Degradation kinetics
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    Microbial consortium
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    Nonhuman
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    Pollutant
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    RHODOBACTER
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    RHODOBACTER MARIS
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    Simulation
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    Acclimatization
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    Aerobic metabolism
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    Biological model
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    CELL CULTURE TECHNIQUE
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    Cell proliferation
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    Chemistry
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    Cytology
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    Drug effects
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    Genetics
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    Growth, development and aging
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    Isolation and purification
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    Metabolism
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    Pharmacology
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    Phylogeny
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    Sequence analysis
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    Bacteria (microorganisms)
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    CHRYSEOBACTERIUM
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    RHODOBACTER
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    Aerobiosis
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    Biodegradation, environmental
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    CHRYSEOBACTERIUM
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    Culture techniques
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    Models, biological
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    Polycyclic hydrocarbons, aromatic
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    RHODOBACTER
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    Rna, ribosomal, 16s
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    SEQUENCE ANALYSIS, RNA
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    Water pollutants, chemical