Microbial treatment of bis (2-ethylhexyl) phthalate in polyvinyl chloride with isolated bacteria

Nakamiya, Kunichika; Hashimoto, Syunji; Ito, Hiroyasu; Edmonds, John S.; Yasuhara, Akio; Morita, Masatoshi

doi:10.1263/jbb.99.115

Cited by 65 publications

(31 citation statements)

References 7 publications

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“…Food and packaging are also important way of human exposure, since DEHP can find its way from water and soil into the food chain (Kueseng et al, 2007), and be transmitted gradually to humans. Recently, Nakamiya et al (2005) estimated that around 25 mg of DEHP was introduced in human body every day only from food. Sharman et al (1994) reported that DEHP concentration in European milk and cheese reached 12 mg/L and 2000 mg/L, respectively.…”

Section: Impacts Of Dehp In the Environment And Human Concernsmentioning

confidence: 99%

Occurrence, fate and effects of Di (2-ethylhexyl) phthalate in wastewater treatment plants: A review

Zolfaghari

Drogui

Seyhi

et al. 2014

Environmental Pollution

157

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Section: Impacts Of Dehp In the Environment And Human Concernsmentioning

confidence: 99%

Occurrence, fate and effects of Di (2-ethylhexyl) phthalate in wastewater treatment plants: A review

Zolfaghari

Drogui

Seyhi

et al. 2014

Environmental Pollution

157

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“…The biodegradation of this compound by Mycobacterium sp. strain NK0301 has been reported (20). This bacterium utilized phthalate as a carbon and energy source and left the carbon skeleton of the 2-ethylhexyl moiety intact, releasing it as 2-ethylhexanol or 2-ethylhexanoic acid.…”

Section: Discussionmentioning

confidence: 99%

Biodegradation of 2-Ethylhexyl Nitrate by Mycobacterium austroafricanum IFP 2173

Nicolau

Kerhoas

Lettere

et al. 2008

Appl Environ Microbiol

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2-Ethyhexyl nitrate (2-EHN) is a major additive of fuel that is used to increase the cetane number of diesel.Because of its wide use and possible accidental release, 2-EHN is a potential pollutant of the environment. In this study, Mycobacterium austroafricanum IFP 2173 was selected from among several strains as the best 2-EHN degrader. The 2-EHN biodegradation rate was increased in biphasic cultures where the hydrocarbon was dissolved in an inert non-aqueous-phase liquid, suggesting that the transfer of the hydrophobic substrate to the cells was a growth-limiting factor. Carbon balance calculation, as well as organic-carbon measurement, indicated a release of metabolites in the culture medium. Further analysis by gas chromatography revealed that a single metabolite accumulated during growth. This metabolite had a molecular mass of 114 Da as determined by gas chromatography/mass spectrometry and was provisionally identified as 4-ethyldihydrofuran-2(3H)-one by liquid chromatography-tandem mass spectrometry analysis. Identification was confirmed by analysis of the chemically synthesized lactone. Based on these results, a plausible catabolic pathway is proposed whereby 2-EHN is converted to 4-ethyldihydrofuran-2(3H)-one, which cannot be metabolized further by strain IFP 2173. This putative pathway provides an explanation for the low energetic efficiency of 2-EHN degradation and its poor biodegradability.2-Ethyhexyl nitrate (2-EHN) is the nitric ester of 2-ethyl-1-hexanol. It is added at 0.05% to 0.4% to diesel formulations in order to increase the cetane number. As a result of the exten-

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“…PVC has been observed in the presence of Pseudomonas fluorescens FS1 (Zeng et al 2002), Coryneform bacterium, and Mycobacterium sp. (Nakamiya et al 2005). The enhanced colonization and microbial succession was observed during biodegradation of a variety of polymers by using consortia of bacterial strains (Roy et al 2008).…”

Section: Handling Editor: Peter Nickmentioning

confidence: 98%

Response of indigenously developed bacterial consortia in progressive degradation of polyvinyl chloride

et al. 2015

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Thermoplastic-based materials are recalcitrant in nature, which extensive use affect environmental health. Here, we attempt to compare the response of indigenously produced bacterial consortium-I and consortium-II in degrading polyvinyl chloride (PVC). These consortia were developed by using different combination of bacterial strains of Pseudomonas otitidis, Bacillus cereus, and Acanthopleurobacter pedis from waste disposal sites of Northern India after their identification via 16S rDNA sequencing. The progressive degradation of PVC by consortia was examined via scanning electron microscopy, atomic force microscopy, UV-vis, FT-IR spectra, gel permeation chromatography, and differential scanning calorimetry analysis at different incubations and time intervals. The consortium-II was superior over consortium-I in degrading the PVC. Further, the carbon source utilization analysis revealed that the extensive use of consortia has not any effect on functional diversity of native soil microbes.

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Microbial treatment of bis (2-ethylhexyl) phthalate in polyvinyl chloride with isolated bacteria

Cited by 65 publications

References 7 publications

Occurrence, fate and effects of Di (2-ethylhexyl) phthalate in wastewater treatment plants: A review

Occurrence, fate and effects of Di (2-ethylhexyl) phthalate in wastewater treatment plants: A review

Biodegradation of 2-Ethylhexyl Nitrate by Mycobacterium austroafricanum IFP 2173

Response of indigenously developed bacterial consortia in progressive degradation of polyvinyl chloride

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