Effect of nonionic surfactants on biodegradation of phenanthrene by a marine bacteria of Neptunomonas naphthovorans

Li, Jingliang; Chen, Bing‐Hung

doi:10.1016/j.jhazmat.2008.05.019

Cited by 54 publications

(33 citation statements)

References 27 publications

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“…However, the kinetic plots show that no inhibition occurred during the degradation of PAH mixtures but rather degradation of all three compounds took place simultaneously. The addition of a surfactant such as Tween-80 produce micelle aggregates providing an additional hydrophobic area in the central region of micelles enhancing the aqueous solubility of PAH (Li and Chen 2008). Even with the presence of Tween-80, the amount of PAH added to the cultures exceeded their aqueous solubility.…”

Section: Discussionmentioning

confidence: 99%

Isolation and genetic identification of PAH degrading bacteria from a microbial consortium

et al. 2009

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Polycyclic aromatic hydrocarbons (PAH; naphthalene, anthracene and phenanthrene) degrading microbial consortium C2PL05 was obtained from a sandy soil chronically exposed to petroleum products, collected from a petrochemical complex in Puertollano (Ciudad Real, Spain). The consortium C2PL05 was highly efficient degrading completely naphthalene, phenanthrene and anthracene in around 18 days of cultivation. The toxicity (Microtox method) generated by the PAH and by the intermediate metabolites was reduced to levels close to non-toxic in almost 40 days of cultivation. The identified bacteria from the contaminated soil belonged to gamma-proteobacteria and could be include in Enterobacter and Pseudomonas genus. DGGE analysis revealed uncultured Stenotrophomonas ribotypes as a possible PAH degrader in the microbial consortium. The present work shows the potential use of these microorganisms and the total consortium for the bioremediation of PAH polluted areas since the biodegradation of these chemicals takes place along with a significant decrease in toxicity.

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Section: Discussionmentioning

confidence: 99%

Isolation and genetic identification of PAH degrading bacteria from a microbial consortium

et al. 2009

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“…Surfactants enhance the solubility of hydrophobic compounds (Boochan, Britz, & Stanley, 1998). Several studies have stressed the importance of surfactants to increase the solubility of PAHs by decreasing the interfacial surface tension between PAH and the soil/water interphase (Li & Chen, 2009). In one study, the efficiency of surfactants in enhancing desorption of PAHs from contaminated soils relative to water was evaluated (Zhou & Zhu, 2009).…”

Section: Chemical Degradationmentioning

confidence: 99%

Polycyclic Aromatic Hydrocarbons Degradation Techniques: A Review

Ukiwe¹,

Egereonu²,

Njoku³

et al. 2013

IJC

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The demand for processed petroleum products and agricultural produce has exposed our environment to polycyclic aromatic hydrocarbons (PAHs) contamination. PAHs stick to solid sediments and are ubiquitous including soil, water and air. Their presence in these media creates problems because consuming products obtained from these sources could be deleterious to human health since several of these compounds (benz(a)anthracene, benzo(a)pyrene, chrysene etc) have been implicated in causing tumors in animals and cancer in humans. The present review describes several remediation techniques which are efficient and cost effective in removing PAHs from the environment. Some of these conventional clean-up methods are not only environmental friendly; they also present a novel approach in reducing the ability of PAHs to cause prospective risk to humans and the ecosystem.

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“…Halophilic or halotolerant PHE-degrading bacteria have the capability of using PHE as a source of carbon and energy (Bogan et al, 2003). A variety of halophilic microorganisms have been isolated from marine or saline water and sediment for the degradation of PHE (Li and Bai, 2005). Compared with non-halophilic degraders, halophilic degraders could treat the contaminants, as well as maintaining an osmotic balance with their external environment (Zhuang et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of phenanthrene by Pseudomonas sp. BZ-3, isolated from crude oil contaminated soil

Meng

Chen

et al. 2014

International Biodeterioration & Biodegradation

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a b s t r a c tA phenanthrene (PHE) degrading bacterium strain BZ-3 was isolated from the crude oil contaminated soil in Binzhou, China. The isolate was identified as Pseudomonas sp. BZ-3 on the basis of 16S rRNA gene sequence. Various experiments were conducted to investigate the effect of pH, salinity and PHE concentration on the degradation efficiency of PHE. The degradation efficiency and degradation metabolites of PHE were detected by using GCeMS and HPLC-MS analyses. The strain BZ-3 could degrade 75% of PHE at an initial concentration of 50 mg/L under 20 g/L salinity in 7 days. PHE degradation kinetics was estimated in a first-order degradation rate model and the rate coefficient was calculated as 0.108 d À1. On the basis of the identified degradation metabolites, the strain BZ-3 could degrade PHE in the salicylate metabolic pathway. In a mixture system consisting of PHE and other PAHs including naphthalene (NA), anthracene (ANTH), and pyrene (PYR), the strain BZ-3 showed an efficiently degradation capability. Further study showed that the strain BZ-3 could also use NA, ANTH, PYR, xylene, 1-hydroxy-2-naphthoic acid, and hexane as the sole carbon and energy source, but did not grow on nitrobenzene-containing medium.

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Effect of nonionic surfactants on biodegradation of phenanthrene by a marine bacteria of Neptunomonas naphthovorans

Cited by 54 publications

References 27 publications

Isolation and genetic identification of PAH degrading bacteria from a microbial consortium

Isolation and genetic identification of PAH degrading bacteria from a microbial consortium

Polycyclic Aromatic Hydrocarbons Degradation Techniques: A Review

Biodegradation of phenanthrene by Pseudomonas sp. BZ-3, isolated from crude oil contaminated soil

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