Naphthalene degradation by Pseudomonas sp. HOB1: In vitro studies and assessment of naphthalene degradation efficiency in simulated microcosms

Pathak, Hilor; Kantharia, Datasha; Malpani, Ankita; Madamwar, Datta

doi:10.1016/j.jhazmat.2008.12.074

Cited by 84 publications

(44 citation statements)

References 32 publications

(31 reference statements)

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“…There has been considerable debate over the efficiency of bioaugmentation (Jorgensen et al 2000;Li et al 2005;Pathak et al 2009). In system with the presence of both inocula and indigenous bacteria, there would be competition for carbon source and nitrogen source like nitrogen and phosphate, etc., and the activity of inocula might also be inhibited because of phagocytosis.…”

Section: Discussionmentioning

confidence: 99%

“…Meanwhile, they reduce the efficiency of the application of bioremediation technology (Mackay and Cherry 1989). Degradation of PAHs has been proved to be enhanced by inoculation with PAHs-degrading bacterial strains (TrzesickaMlynarz and Ward 1996;Juhasz and Naidu 2000;Pathak et al 2009), especially when the site has been polluted by poorly degradable HMW PAHs at high concentrations or the site has only recently been contaminated. To improve the bioavailability of PAHs, several kinds of surfactants have been applied in the biotreatment to investigate their potential ability in facilitating the PAHs biodegradation in recent years (Kim et al 2001;Collina et al 2007;Jin et al 2007;Seo and Bishop 2007).…”

Section: Introductionmentioning

confidence: 99%

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Degradation of fluoranthene by a newly isolated strain of Herbaspirillum chlorophenolicum from activated sludge

Qiu

et al. 2010

Biodegradation

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A fluoranthene-degrading bacterial strain FA1 was isolated from activated sludge and identified as Herbaspirillum chlorophenolicum, a newfound bacterial species that can grow well on fluoranthene as sole carbon and energy source. The kinetic characteristic of strain FA1 was tested in the aqueous model system (AMS) and the effects of nonionic surfactants on fluoranthene biodegradation in the AMS were then investigated. Tween 80 exhibited the best solubilization capacity for fluoranthene among three surfactants and its bioavailability decreased with an increase in its concentration and its degradation kinetics fit well with the first-order of power index model. The biotransformation of fluoranthene was greatly improved by Tween 80, and 58.5% fluoranthene degradation was obtained as Tween 80 was 100 mg/l. However, the bioavailability of fluoranthene decreased gradually with the increase of Tween 80 concentration. Bioremediation tests for fluoranthene in soil-water system were designed further to examine the degrading ability of strain FA1 with the presence of indigenous flora or not. The measurements showed that in the presence of indigenous flora, the optimum 30-day fluoranthene degradation in soil-water system reached 77.4%. Evidently, strain FA1 seems both efficient and high-effective and deserves further exploration on the enhanced bioremediation technologies for the treatment of fluoranthene-polluted soil.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Degradation of fluoranthene by a newly isolated strain of Herbaspirillum chlorophenolicum from activated sludge

Qiu

et al. 2010

Biodegradation

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“…According to this design the total number of experimental combinations was 2 k +2k+n 0 , where k is the number of independent variables and n 0 is number of repetition of experiments at the center point. The 'Design-Expert' version 8.0, State-Ease Inc., Minneapolis, USA was used for experimental design, regression and graphical analysis of the data obtained [19]. Groundnut oil concentration, yeast extract concentration and inoculum size were studied at five different concentrations.…”

Section: Evaluation Of Effect Of Concentration Of Media Components (Omentioning

confidence: 99%

Optimization of prodigiosin-type biochrome production and effect of mordants on textile dyeing to improve dye fastness

2015

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The environmental toxicity concerns raised by the synthetic origin pigments have lead to escalating interest towards natural pigments. In the present study, prodigiosin type biochrome-a member of prodiginine dye family was obtained from indegenously isolated bacterial strain Serratia sp. KH-1. Cultural and physiological parameters for production of pigment along with its application on dyeing fabrics have been studied. The identity of prodigiosin type biochrome was confirmed by fourier transform infrared (FT-IR) spectroscopy, mass spectroscopy and nuclear magnetic resonance (NMR). The detailed dyeing ability of this biochrome was evaluated using cotton and wool fabrics. The fabric showed the maximum dye uptake (K/S) at of 50 o C for 50 min duration, and 4.3 g/l dye concentration. Pre-mordanting by sodium chloride proved to be effective on increasing K/S values of the dyed fabrics under the optimum dyeing conditions. Fastness ratings to washing and light showed acceptable fastness for both cotton and wool fabrics. Hence, the present study represents the application and detailed investigation of prodigiosin type biochrome for textile dyeing using mordants. This study will thus, be helpful for designing the dyeing protocol for cotton and wool fabrics using eco-friendly pigment.

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“…[52] reported that the Pseudomonas sp was able to remove 72% of PAH from PAH contaminated soil. [53] isolated different PAH bacterial degraders from sediments of the polluted Amlakadi canal, Gujarat, India and found that amongst the isolates, Pseudomonas sp showed the highest potential for PAH degradation being able to degrade 2000 ppm PAH within 24 h.…”

Section: International Journal Of Environmental Bioremediation and Biodmentioning

confidence: 99%

Assessment of the Hydrocarbon Degrading Abilities of Three Bioaugmentation Agents for the Bioremediation of Crude Oil Tank Bottom Sludge Contaminated Libyan Soil

Mansur¹,

Adetutu²,

Makadia³

et al. 2015

IJEBB

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Bioremediation is a widely used environmental friendly treatment method for petrogenic hydrocarbon contaminated soils but its application to the treatment of crude oil tank bottom sludge (COTBS) contaminated soil is limited especially in Mediterranean countries such as Libya. Therefore in this study, the hydrocarbon degrading abilities of three bioaugmentation agents Pseudomonas sp (4M12), Pseudomonas xanthomarina (4M14) and Arthrobacter nitroguajacolicus (1B16A) (isolated from COTBS polluted soils) applied as part of a biostimulation-bioaugmentation (BS/BA) strategy were assessed in COTBS contaminated Libyan soils. Biostimulated (BS) and natural attenuation (NA) microcosms were also set up for comparative purposes. Gas chromatograph mass spectrometer (GC-MS) analysis revealed a total soil petroleum hydrocarbon (TPH) and polycyclic aromatic hydrocarbon (PAHs) content of 30,703 mg kg -1 and 13,816 mg kg -1 respectively. Two carcinogenic fractions (naphthalene and benzenamine, 4, 4`methylenbis [2-methyl-]) and 4 mutagenic fractions (pyrene, phenanthrene, fluorene and anthracene) were detected. Substantial PAH degradation occurred in 4M14 and 4M12 samples within 15 days in contrast to up to 23 days in 1B16A, NA. However, substantial reduction in TPH (> 97%) was only observed in 4M12 and 4M14 inoculated microcosms within 15 days compared to 25-30 days in 1B16A inoculated, BS and NA microcosms. 4M14 inoculated microcosms were most efficient at complete removal (D100) of all carcinogenic and mutagenic fractions; 4M14 (9-10 days), 4M12 (9-15 days), 1B16A (15-23 days), BS (18-21 days) and NA (18-22 days). Pseudomonas xanthomarina was therefore shown as the best candidate for use in a BS/BA approach for treating COTBS contaminated Libyan soils. This study shows the importance of pre-screening bioaugmentation agents for the removal of carcinogenic and mutagenic fractions prior to use; in order to carry out safe, efficient and sustainable COTBS bioremediation in Libya.

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Naphthalene degradation by Pseudomonas sp. HOB1: In vitro studies and assessment of naphthalene degradation efficiency in simulated microcosms

Cited by 84 publications

References 32 publications

Degradation of fluoranthene by a newly isolated strain of Herbaspirillum chlorophenolicum from activated sludge

Degradation of fluoranthene by a newly isolated strain of Herbaspirillum chlorophenolicum from activated sludge

Optimization of prodigiosin-type biochrome production and effect of mordants on textile dyeing to improve dye fastness

Assessment of the Hydrocarbon Degrading Abilities of Three Bioaugmentation Agents for the Bioremediation of Crude Oil Tank Bottom Sludge Contaminated Libyan Soil

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