Isolation And Characterization Of Oil Degrading Bacteria Pdf


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27.04.2021 at 16:45
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isolation and characterization of oil degrading bacteria pdf

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This study was aimed at isolating and characterizing hydrocarbon-degrading fungi from hydrocarbon-contaminated soil in Ogbe-Ijoh oil creek in Warri, Delta State, Nigeria. Isolation and characterization were carried out using standard methods.

Besides this direct pollution, the occasionally pipeline leaks, transportation accidents, storage tank ruptures and refining petroleum is further intensifying the pollution of this area.

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Petroleum-Tolerant Rhizospheric Bacteria: Isolation, Characterization and Bioremediation Potential

Water Sci Technol 29 December ; 78 12 : — The aim of this study was to isolate hydrocarbons-degrading bacteria for treatment of oily wastewater from long-standing petroleum-polluted sediments in Bohai Bay, China. Six hydrocarbons-degrading bacteria were screened and identified as Pseudomonas sp. A new approach using a combination of various bacterial species in petroleum biodegradation was proposed and evaluated for its degradation characteristics. Besides, after 14 days of culture, the biodegradation assessment markers, pristane and phytane, showed significant degradation rates of

Isolation and characterisation of crude oil sludge degrading bacteria

The aim of this work was to isolate and characterize bacteria from two crude oil-contaminated soils which were capable of producing biosurfactant and degrade oil. The contaminated soils were located in Tehran and Isfahan oil refineries, Iran. Various traits, such as hemolytic activity, oil resolving , oil spreading, and oil emulsifying capability were used to screen the isolates. Among 54 isolated isolates from two petroleum-contaminated soils, only 10 isolates were able to produce biosurfactant and degrade oil. These 10 isolates could produce glycolipid biosurfactants, which ranged from 1.

Microbial Ecotoxicology View all 42 Articles. Autochthonous bioaugmentation, by exploiting the indigenous microorganisms of the contaminated environment to be treated, can represent a successful bioremediation strategy. In this perspective, we have assessed by molecular methods the evolution of bacterial and fungal communities during the selective enrichment on different pollutants of a soil strongly polluted by mixtures of aliphatic and polycyclic hydrocarbons. Three consecutive enrichments were carried out on soil samples from different soil depths 0—1, 1—2, 2—3 m , and analyzed at each step by means of high-throughput sequencing of bacterial and fungal amplicons biomarkers. At the end of the enrichments, bacterial and fungal contaminants degrading strains were isolated and identified in order to i compare the composition of enriched communities by culture-dependent and culture-independent molecular methods and to ii obtain a collection of hydrocarbon degrading microorganisms potentially exploitable for soil bioremediation.

Use of this Web site signifies your agreement to the terms and conditions. Special Issues. Contact Us. Change code. International Journal of Microbiology and Biotechnology. Release of petroleum oil and its products into the environment is a worldwide concern.

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Metrics details. The use of microorganisms in remediating environmental contaminants such as crude oil sludge has become a promising technique owing to its economy and the fact it is environmentally friendly. Polycyclic aromatic hydrocarbons PAHs , as the major components of oil sludge, are hydrophobic and recalcitrant. An important way of enhancing the rate of PAH desorption is to compost crude oil sludge by incorporating commercial surfactants, thereby making them available for microbial degradation.

Two yeast strains are enriched and isolated from industrial refinery wastewater. These strains were observed for their ability to utilize several classes of petroleum hydrocarbons substrates, such as n -alkanes and aromatic hydrocarbons as a sole carbon source. The mechanism of hydrocarbon uptaking by yeast, Candida, and Trichosporon has been studied by means of the kinetic analysis of hydrocarbons-degrading yeasts growth and substrate assimilation. Biodegradation capacity and biomass quantity were daily measured during twelve days by gravimetric analysis and gas chromatography coupled with mass spectrometry techniques. Removal of n -alkanes indicated a strong ability of hydrocarbon biodegradation by the isolated yeast strains.

Она повернулась к монитору и показала на работающего Следопыта. - Я никуда не спешу. Стратмор сокрушенно вздохнул и начал мерить шагами комнату.

Парень побелел. Беккер попридержал его еще минутку, потом отпустил. Затем, не сводя с него глаз, нагнулся, поднял бутылки и поставил их на стол. - Ну, доволен. Тот потерял дар речи. - Будь здоров, - сказал Беккер. Да этот парень - живая реклама противозачаточных средств.

Мидж развела руками. - О чем. - Квадрат Цезаря, - просияла Сьюзан.  - Читается сверху. Танкадо прислал нам письмо. ГЛАВА 122 - Шесть минут! - крикнул техник. Сьюзан отдала приказ: - Перепечатайте сверху .


PDF | Twenty-one oil-degrading bacteria were isolated from bilge water. Based on a high growth rate on crude oil and on hydrocarbon degradation ability.


 - Какого черта вы не позвонили Стратмору. - Мы позвонили! - не сдавалась Мидж.  - Он сказал, что у них все в порядке. Фонтейн стоял, тяжело дыша. - У нас нет причин ему не верить.

Единственный мужчина, которого она любила. Самый молодой профессор Джорджтаунского университета, блестящий ученый-лингвист, он пользовался всеобщим признанием в академическом мире. Наделенный феноменальной памятью и способностями к языкам, он знал шесть азиатских языков, а также прекрасно владел испанским, французским и итальянским. На его лекциях по этимологии яблоку негде было упасть, и он всегда надолго задерживался в аудитории, отвечая на нескончаемые вопросы. Он говорил авторитетно и увлеченно, не обращая внимания на восторженные взгляды студенток.

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PDF | The oil degrading bacterial strains were isolated from marine sediments collected from fuel oil–polluted coastal area in Penang, Malaysia.

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