Topic
Microbial biodegradation
About: Microbial biodegradation is a research topic. Over the lifetime, 1647 publications have been published within this topic receiving 75473 citations.
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TL;DR: CNP-8 is the first bacterium with the ability to utilize 2,6-DCNP, and this study fills a gap in the microbial degradation mechanism of this pollutant at the molecular, biochemical and genetic levels.
12 citations
01 Jan 2004
12 citations
TL;DR: The study discusses the effect that the structure of PCBs congeners causes on the conversion by hydroxylation, on the biodegradation rate of both PCBs and their hydroxy derivatives, and on the metabolite formation levels.
12 citations
01 Jan 2017
TL;DR: In this paper, the interaction between hydrocarbon-degrading bacteria on corrosion of carbon steel is elucidated and the role of biodegradation on corrosion was confirmed by gas chromatography-mass spectrometry, X-ray diffraction, electrochemical impedance spectroscopy and weight loss analyses.
Abstract: Crude oils vary in their physical properties, chemical composition and between fields of origin; of special importance are the relative amounts of high and low molecular weight compounds present in crude oils. Heavy oils contain a greater percentage of high molecular weight components. The low biodegradation rates of heavy oils probably reflect the resistance of the complex high molecular weight components to microbial degradation. Hydrocarbons are water insoluble substrates that often need to be emulsified prior to their degradation by microbes. Emulsification is an important phenomenon among those parameters which influence the fate of crude oil. It has been accepted that the microorganisms developing on hydrocarbons produce surface-active agents, or biosurfactants, which emulsify the substrate, enabling its transfer into cells. Biodegraded hydrocarbons can provide bio-corrosive microbial communities with an important source of nutrients. Hence, occurrence of some hydrocarbon-degrading bacteria in oil reservoir/petroleum transporting pipelines influence electrochemical corrosion reactions. These isolates able to cause corrosion of carbon steel. Microbiologically influenced corrosion is a problem commonly encountered in facilities of the oil and gas industries. New insights into microbial corrosion processes may be achieved through understanding of the interaction between biodegradation and corrosion of carbon steel in crude oil reservoir/transporting pipelines. In this chapter, the interaction between hydrocarbon-degrading bacteria on corrosion of carbon steel are elucidated. The role of biodegradation on corrosion was confirmed by gas chromatography–mass spectrometry, X-ray diffraction, electrochemical impedance spectroscopy and weight loss analyses. The potential of this consortium was evaluated for the bioremediation of oil-contaminated environments.
12 citations
TL;DR: In this article, the authors investigated whether toxicity could be a reason for incomplete microbial degradation of mineral oils in the laboratory and the environment, especially in soils contaminated over a long period.
12 citations