Degradation of hydrocarbons under aerobic degradation of aromatic hydrocarbons by microorganisms. Medical search. Frequent questions

Ultimately biodegradation converts hydrocarbons to carbon dioxide and water. (wikipedia.org)
Under ideal aerobic conditions, the biodegradation rates of the low- to moderate-weight aliphatic, alicyclic, and aromatic compounds can be very high. (wikipedia.org)
The rate of biodegradation is dependent on the ambient temperature, the presence of a sufficient number of microorganisms capable of metabolizing these hydrocarbons, and the concentration of Stoddard solvent in or on the soil or water. (cdc.gov)
If biodegradation occurs under anoxic conditions, then the availability of Fe(III) may influence the biodegradation of aromatics (Lovley et al.1994). (cdc.gov)
Biodegradation of anthracene, benzo(a)anthracene and dibenzo(a,h)anthracene by indigenous strains of aerobic heterotrophic bacteria and cyanobacteria isolated from Bodo creek - a moderate salt aquatic environment polluted with crude oil was monitored for 56 days using GC-MS. Anthracene was mineralized to 0.1, 0.001 and 0.08 mg/l by aerobic heterotrophic bacteria cyanobacteria and consortium of aerobic heterotrophic bacteria and cyanobacteria respectively. (omicsonline.org)
It is used in detecting contamination of PAHs and as a model polycyclic aromatic hydrocarbon for determination of the factors that affect bioavailability, rate of microbial degradation and biodegradation potential of PAHs in the environment [ 3 ]. (omicsonline.org)
2006. Microbial dioxygenase gene population shifts during polycyclic aromatic hydrocarbon biodegradation. (nih.gov)
2% aromatics, demonstrated a high extent of biodegradation in seawater following a standard OECD test guideline, which suggests that it has the potential to rapidly biodegrade in the marine environment. (europa.eu)
The primary mechanisms of attenuation and degradation of organic contaminants in the Newer Volcanics aquifer system are probably biodegradation, matrix diffusion, sorption, and dispersion (for non-reactive contaminants) in order of decreasing effect. (edu.au)
Guaymas sediments contain all these possible hydrocarbon combinations, and provide an excellent opportunity to investigate microbial hydrocarbon biodegradation because the Guaymas microbiota have had time to adapt to the hydrocarbon repertoire present 4 . (springernature.com)
An in situ remediation technique applicable to the saturated zone and the capillary fringe that consists of injecting oxygen or air at a low pressure into the aquifer to stimulate the biodegradation of organic compounds adsorbed into the saturated soil, by the native microorganisms naturally present. (eni.com)
An in situ remediation technique applicable to unsaturated soil that stimulates the biodegradation by native microorganisms (naturally present in the soil) of organic compounds adsorbed into the unsaturated soil by blowing oxygen or air at a low pressure into the soil layers affected by the presence of organic contaminants. (eni.com)

UNICEF, power producers, bulk water suppliers and local governments are early adopters of low cost bioremediation, such as aerobic bacteria tablets which are simply dropped into water. (wikipedia.org)
Benzo(a)anthracene was reduced to 0.03, 0.01 and 0.02 mg/l in the treatments of aerobic heterotrophic bacteria cyanobacteria and consortium of aerobic heterotrophic bacteria and cyanobacteria respectively where as dibenzo(a,h)anthracene was reduced to 0 mg/l in all the treatment options on the 56th day monitored. (omicsonline.org)
In addition, analysis on culture dependent and culture independent bacteria were done, which might play a vital role in the degradation of the non-degradable compounds. (ispub.com)
Plant-mediated effects on polycyclic aromatic hydrocarbon (PAH) degradation by bacteria in the rhizosphere of the salt marsh grasses, Spartina alterniflora and Phragmites australis. (nih.gov)
Five screening tests were used for selection of the bacteria including hemolysis in blood agar, oil spreading, drop collapse, emulsification activity and bacterial adhesion to hydrocarbon test (BATH). (ac.ir)
Benjamin Gregson 2019 "Proteomic insights into the marine obligate hydrocarbonoclastic bacteria (OHCB) during alkane degradation" University of Essex. (plymouth.ac.uk)
Sridevi, S. & Sandeep, B.V., Isolation and Characterization of Petroleum Hydrocarbon Degrading Indigenous Bacteria from Contaminated Sites of Visakhapatnam, International Journal of Advanced Research, 4(3), pp. 357-362, 2016. (itb.ac.id)
Actinomycetes - Any of numerous, generally filamentous, and often pathogenic, microorganisms resembling both bacteria and fungi. (carwashloansinfo.com)
The essence of the technique is to map the unique protein pattern of microbes that contributes to characterizing a wide variety of microorganisms, including bacteria, fungi, and viruses. (u-szeged.hu)
2013 ). Endophytic bacteria from rhizomes and roots of reed plants were widely used for micropollutant degradation and bioremediation, owing to their extracellular enzymes which serve either a protective function and oxidise extracellular toxic soluble phenolic metabolites to insoluble polymerized products, or a degradative function and oxidise polymeric lignin or phenols for metabolic purposes (Harvey et al. (researchsquare.com)
The aim of this ERC funded project (IsoMet) is to obtain a critical, fundamental understanding of the metabolism and ecological importance of biological isoprene degradation and to test the hypothesis that isoprene-degrading bacteria play a crucial role in the biogeochemical isoprene cycle, thus helping to mitigate the effects of this important but neglected climate-active gas. (jcmurrell.co.uk)

Bioventing, an aerobic bioremediation, is the most common form of oxidative bioremediation process where oxygen is provided as the electron acceptor for oxidation of petroleum, polyaromatic hydrocarbons (PAHs), phenols, and other reduced pollutants. (wikipedia.org)
in a consortium as a successful Polycyclic Aromatic Hydrocarbons (PAHs) degrader. (sdewes.org)
the most easily attacked/utilized hydrocarbons are linear alkanes (carbon-to-carbon single bonds) followed by increasingly recalcitrant branched alkanes (branches of carbon atoms attached to the hydrocarbon chain), small monoaromatic hydrocarbons (contain only one aromatic ring), and finally polyaromatic hydrocarbons (PAHs) that contain multiple aromatic rings in their molecular structure 6 . (springernature.com)
Within PyOM, the metabolism of specific chemistries differed strongly between unlimited and oxygen-limited conditions - degradations of anhydrosugars, phenols, and polycyclic aromatic hydrocarbons (PAHs) were more favorable under oxygen limitation than other molecules. (copernicus.org)

Bioremediation by microorganisms is a cost-effective and environmental-friendly method for remediation of oil contamination from the environment which its success depends on microorganisms that are capable to remove of aromatic and aliphatic hydrocarbons. (ripi.ir)
A group of chemicals (also known as paraffins or aliphatic hydrocarbons) for which the carbon atoms are all linked by single covalent bonds. (itrcweb.org)
A group of chemicals (also known as paraffins or aliphatic hydrocarbons) for which the carbon atoms contain at least one double bond. (itrcweb.org)
Alkanes, alkenes, and alkynes are aliphatic hydrocarbons. (carwashloansinfo.com)
Alkanes - the homologous group of linear saturated aliphatic hydrocarbons having the general formula C(n)H(2n+2). (carwashloansinfo.com)

Most bioremediation processes involve oxidation-reduction reactions where either an electron acceptor (commonly oxygen) is added to stimulate oxidation of a reduced pollutant (e.g. hydrocarbons) or an electron donor (commonly an organic substrate) is added to reduce oxidized pollutants (nitrate, perchlorate, oxidized metals, chlorinated solvents, explosives and propellants). (wikipedia.org)
Bioremediation is one such approach, but is dependent on the availability of microorganisms with the necessary metabolic abilities and environmental adaptability. (springeropen.com)
Microorganisms from polluted environments hold the key to unlocking most of the challenges associated with bioremediation (Eze et al. (springeropen.com)
Bioremediation refers to the productive use of microorganisms to remove or detoxify pollutants, usually as contaminants of soils, water or sediments that otherwise intimidate human health. (biologydiscussion.com)
The vast majority of bioremediation applications use naturally occurring microorganisms to identify and filter toxic waste before it is introduced into the environment or to clean up existing pollution problems. (biologydiscussion.com)

Oxidations enhance the water-solubility of organic compounds and their susceptibility to further degradation by further oxidation and hydrolysis. (wikipedia.org)
Contaminants detected in the Newer Volcanics aquifer system during this research include phenols, volatile organic compounds, polynuclear aromatic hydrocarbons, polychlorinated biphenyls, metals, and inorganic anions. (edu.au)
Hydrocarbons are compounds that contain carbon and hydrogen atoms, and in Guaymas Basin are found in mixed/complex pools containing saturated forms (single chemical bonds between the carbon atoms), aromatic molecules (contain one or more aromatic rings) and alkylated aromatic compounds, where the hydrogen atom(s) is/are replaced by alkyl-groups 2 . (springernature.com)
In our study we used gas chromatography (GC-FID and GC-MS) to provide an extensive assessment of ~200 hydrocarbon compounds in porewaters and sediment cakes from AUV (autonomous underwater vehicle) Alvin pushcores, from three distinct hydrothermal areas located at the Guaymas Basin (Cathedral Hill, Aceto Balsamico and Marker 14) and we discuss their distribution and fate. (springernature.com)
The PPS predicts plausible pathways for microbial degradation of chemical compounds. (europa.eu)
Acyclic or cyclic, saturated or unsaturated, carbon compounds (excluding aromatic compounds). (itrcweb.org)
Native microorganisms biodegrade hydrocarbon compounds under aerobic conditions, using them as a source of carbon and energy. (eni.com)
Aromatic - of or relating to organic compounds that resemble benzene in chemical behavior. (carwashloansinfo.com)

The origin of, and microbial degradation of hydrocarbons in Guaymas Basin have been examined previously ( 7, 8 and references there in). (springernature.com)
We coupled these data with in-depth two-dimensional chromatography (GCxGC) to investigate specific signatures of microbial degradation of hydrocarbons at the two sites with the most contrasting GC-FID and GC-MS profiles (Cathedral Hill vs. Marker 14). (springernature.com)

The lower molecular weight alkanes and aromatics may volatilize and undergo photodegradation in the atmosphere, while higher-molecular-weight alkanes and cycloalkanes tend to be sorbed to organic matter in soil or water. (cdc.gov)

This places stress on many marine and shore habitats by placing an imbalance of nutrients through decreasing the amount of oxygen in the environment, since most petroleum degradation are aerobic processes. (kenyon.edu)
Traditional methods of oil spill cleaning include processes such as controlled burns , skimmers, vacuum pumping, low-pressure flush, manual mechanical cleanup, gelling agent , and many more [3] , most of which merely remove the hydrocarbon from the affected water or environment and transfers them to another location. (kenyon.edu)
The main objectives of this research were 1) to assess the types, concentrations, and distribution of contaminants in the Newer Volcanics aquifer system in Melbourne's western suburbs and at a selected contaminated site and 2) to determine contaminant transport, attenuation, and degradation processes affecting organic contaminants in this aquifer system. (edu.au)
A major focus is to understand the mechanisms that underpin important biogeochemical processes conducted by marine microorganisms. (plymouth.ac.uk)
Our focus is on the application of different microorganisms to CFA, the domestication of microorganisms, preprocessing of CFA to facilitate effective biometallurgical processes, the use of bioreactors, and synthesis of nano silica particles. (researchgate.net)
In the last few years, the application of biotechnological processes that involvesing microorganisms with the objective of solving environmental pollution problems, is rapidly gro-wing. (openmicrobiologyjournal.com)
Recent interests are on aerobic and anaerobic processes for the treatment of domestic and industrial wastewaters, and the movement, fate, and control of groundwater contaminants. (stanford.edu)

2010 ). This is a major threat to both the environment and human health, due to the phytotoxicity and carcinogenicity of petroleum hydrocarbons. (springeropen.com)
Petroleum hydrocarbons are the most common environmental pollutants in the world and oil spills pose a great hazard to terrestrial and marine ecosystems. (openmicrobiologyjournal.com)
In this review article, we have discussed the potential of immobilized microbial cells to degrade petroleum hydrocarbons. (openmicrobiologyjournal.com)

It involves the use of microorganisms to degrade environmental pollutants. (sdewes.org)

Bioventing is a process that increases the oxygen or air flow into the unsaturated zone of the soil, this in turn increases the rate of natural in situ degradation of the targeted hydrocarbon contaminant. (wikipedia.org)
The United States Environmental Protection Agency indicated that implementing in situ degradation will result in cost savings of 50 to 80% over traditional methods such as excavation and landfill incineration (USEPA 2001 ). (springeropen.com)

Formation of these hydrocarbon cocktails in Guaymas Basin is enhanced by pyrolysis, a process whereby the sedimentary organic matter is rapidly transformed by hot hydrothermal fluids into hydrocarbons under high pressure and temperature (200-300 o C) 3 . (springernature.com)
Microorganisms have been used for many years to remove organic matter and toxic chemicals from domestic and manufacturing waste discharge. (biologydiscussion.com)
This process is recognized as an environmentally friendly and cost-effective method, as organic matter is biologically degraded under aerobic conditions [ 5 ] . (encyclopedia.pub)
The released GHGs are attributed to energy requirements for composting plants' operation and to the biochemical reactions within the organic waste itself, which produces CO 2 , methane (CH 4 ), and nitrous oxide (N 2 O) due to the mineralization and degradation of organic matters [ 10 ] [ 11 ] . (encyclopedia.pub)
Pyrogenic organic matter (PyOM) from wildfires impacts river corridors globally and is widely regarded as resistant to biological degradation. (copernicus.org)
Absence of a priming effect on dissolved organic carbon degradation in lake water. (uu.se)

11 ] determined that the group of Actinobacteria was one of the most abundant microorganisms in the bacterial community structure in anaerobic digesters of a full-scale municipal wastewater treatment plant. (sdewes.org)
Aside from their use in urban life, hydrocarbons can be also used by some naturally-occurring microbes that can utilize (degrade) hydrocarbons under a variety of aerobic (with oxygen) and anaerobic (no oxygen) conditions for energy gain 5 . (springernature.com)

The higher-molecular-weight aromatic components may dissolve in surface waters, or they may desorb from soil particles and leach into the groundwater. (cdc.gov)
Generally, these insert in soil and can affect the microorganisms that were important in maintaining fertility of the soil. (ispub.com)
Toxic effects of oil and their products on the soil environment include enhancing hydrophobicity of soils, disturbance of water availability to vegetation, and direct toxicity to plants and microorganisms. (openmicrobiologyjournal.com)
Through successive enrichment of soil microorganisms from samples of an historic petroleum contaminated site in Wietze, Germany, we isolated a bacterial consortium using diesel fuel hydrocarbons as sole carbon and energy source. (springeropen.com)
The treatment involves piling layers of contaminated soil in which aerobic biological activity is stimulated through aeration and the addition of nutrients, minerals and water. (eni.com)
A process that uses microorganisms or their enzymes, naturally occurring in environmental matrices (soil and water), to decontaminate sites and restore them to their original condition or to achieve concentrations below threshold values defined by an environmental/health risk assessment. (eni.com)
It can be applied in combination (alternating phases) with a Soil Vapour Extraction (SVE) process to ensure the removal of both volatile/semi-volatile and non-volatile hydrocarbon fractions. (eni.com)
She has a strong background in fundamental and applied work on the spread, degradation and treatment of contaminants in water/soil/sediment and the natural environment. (ubc.ca)

The analysis of both the metagenome of the consortium and the reconstructed metagenome-assembled genomes show that the most abundant bacterial genus in the consortium, Acidocella , possess many of the genes required for the degradation of diesel fuel aromatic hydrocarbons, which are often the most toxic component. (springeropen.com)
In some studies, enhanced degradation with immobilized cells as compared to free living bacterial cells for the treatment of oil contaminated areas have been shown. (openmicrobiologyjournal.com)

Oxygen is generally the preferred electron acceptor because of the higher energy yield and because oxygen is required for some enzyme systems to initiate the degradation process. (wikipedia.org)
The amount of oxygen consumed by the microorganisms from oxidation of the test substance was monitored by an automated respirometer during a 28-day testing period. (europa.eu)
Phototrophs and obligated aerobic organisms will be affected due to the lack of light or oxygen respectively. (kenyon.edu)
These reactions are ones, for example, that have never been observed under aerobic conditions and the enzymes are oxygen sensitive. (europa.eu)
Aerobic - Able to live, grow, or take place only when free oxygen is present. (carwashloansinfo.com)

In both these approaches, additional nutrients, vitamins, minerals, and pH buffers are added to enhance the growth and metabolism of the microorganisms. (wikipedia.org)
It is a recalcitrant and toxic substance to various living organisms and severely inhibits the enzymatic metabolism of many microorganisms. (sdewes.org)
Inactivity and hypoxia resulted in a significant increase in the genus Bacteroides in HBR, in genes coding for proteins involved in iron acquisition and metabolism, cell wall, capsule, virulence, defense and mucin degradation, such as beta-galactosidase (EC3.2.1.23), α-L-fucosidase (EC3.2.1.51), Sialidase (EC3.2.1.18), and α-N-acetylglucosaminidase (EC3.2.1.50). (frontiersin.org)
The fact that the genus Bacteroides and proteins involved in iron acquisition and metabolism, cell wall, capsule, virulence and mucin degradation were enriched at the end of HBR suggest that both constipation and EC decreased intestinal metal availability leading to modified expression of co-regulated genes in Bacteroides genomes. (frontiersin.org)

In hydrothermal sediments of Guaymas Basin, hopane and sterane biomarkers undergoing thermal and biological degradation are carried to surficial sediments by hydrothermal fluids, according to geochemical and chromatographic analyses of sediment cores. (springernature.com)
2017 ), adsorption (Banihashemi &Droste 2014 ), flocculation and biological degradation (Fudala-Ksiazek et al. (researchsquare.com)
Among these ways, biological degradation is a better alternative. (researchsquare.com)

Mathew and Amund [ 10 , 11 ] reported 91.7% and 51% anthrance degradation by Microcccus luteus and Pseudomonas cetronellolis from crude oil polluted environment respectively. (omicsonline.org)
These hydrothermal sediments host a large range of hydrocarbons typically found in relic fuels (e.g., petroleum/crude oil). (springernature.com)

In some cases, relatively undiluted contaminants may be transported along preferred flow paths to discharge locations where they may pose a potential threat to the environment prior to degradation or attenuation. (edu.au)
Intracellular enzymes could also inevitably show a high metabolic versatility in the degradation of micro-contaminants (Fischer &Majewsky 2014 , Sasaki et al. (researchsquare.com)

We successfully isolated and analysed a potential hydrocarbon-degrading consortium. (springeropen.com)

2004 ). Hence, the presence of microorganisms with the metabolic capability to degrade petroleum and the ability to adapt to a range of environmental conditions is a crucial factor (Das and Chandran 2011 ). (springeropen.com)

Mainly, two genes linA and linB encode dehydrochlorinase and dehalogenase enzymes involved in degradation of HCH. (ispub.com)

A hydrocarbon compound in which the carbon atoms are in a straight-chain, branched, or cyclic arrangement and are saturated or unsaturated. (itrcweb.org)

Research into the genetics, biochemistry and physiology of exploitable microorganisms is rapidly being translated into commercially available technologies for reversing and preventing further deterioration of the earth's environment. (biologydiscussion.com)
The PlanHab wash-out period corresponded to a profound life-style change (i.e., reintroduction of exercise) that resulted in stepwise amelioration of the negative physiological symptoms, indicating that exercise apparently prevented the crosstalk between the microbial physiology, mucin degradation and proinflammatory immune activities in the host. (frontiersin.org)

The aim of this study was to examine the microbial community in a petroleum contaminated site, and isolate organisms potentially able to degrade hydrocarbons. (springeropen.com)

Polycyclic aromatic hydrocarbons are ubiquitous in nature and persist in the environment as a result of their low solubility in water due to their hydrophobicity [ 1 ]. (omicsonline.org)

We provide information on predominant biomarkers (molecules formed by microbial activity during microbial hydrocarbon degradation) such as hopanes and steranes, their analogues (e.g., diasteranes, mono-/tria-aromatic steranes), and what controls their distribution/fate in the sediments of these two contrasting sites (Figure 1). (springernature.com)

Degradation of HCH was carried out commonly by strains of Sphingomonas paucimobilis and Rhodanobacter lindaniclasticus . (ispub.com)
2021. Differential roles of three different upper pathway meta ring cleavage product hydrolases in the degradation of dibenzo-p-dioxin and dibenzofuran by Sphingomonas wittichii strain RW1. (nih.gov)

Inoculum used as the source of the microorganisms was an aliquot of fresh activated sludge from a domestic wastewater treatment facility in New Jersey, USA. (europa.eu)

Marine microorganisms have unique physiological properties and novel metabolites such as biosurfactant to live in extreme habitats (e.g. oil polluted environment). (ac.ir)
Ahmed Nawaz 2020 "Microbial colonisation and degradation of plastic pollution in the marine environment" Open University. (plymouth.ac.uk)
I study the biology, ecology and evolution of marine microorganisms. (plymouth.ac.uk)

The aim of environmental biotechnology is to prevent, arrest and reverse environmental degradation through the appropriate use of biotechnology in combination with other technologies, while supporting safety procedures as a primary component of the programme. (biologydiscussion.com)
2012 ). Another study from Japan suggests that BPS appears to be more resistant to environmental degradation than BPA (Ike et al. (researchsquare.com)

A) The key isoprene degradation genes and their organisation in Rhodococcus sp. (jcmurrell.co.uk)

Anthracene is a tricyclic poly aromatic hydrocarbon which is characterized by a three fused benzene ring. (omicsonline.org)

The inoculum included only the indigenous microorganisms present in the seawater sample. (europa.eu)
The test substance biodegraded to an extent of 69% after 28 days in seawater that used the indigenous microorganisms in the seawater sample as a sole source of the inoculum. (europa.eu)

Aggregate - coarse mineral material ( e.g. , sand, gravel) that is mixed with either cement to form concrete or tarry hydrocarbons to form asphalt. (carwashloansinfo.com)

In both these approaches, additional nutrients, vitamins, minerals, and pH buffers may be added to optimize conditions for the microorganisms. (wikipedia.org)
RH, which is unlikely to occur under aerobic conditions, is an example of this type of rule. (europa.eu)

Anatomy4

Organisms9

Chemicals and Drugs91

Analytical, Diagnostic and Therapeutic Techniques and Equipment10

Phenomena and Processes36

Disciplines and Occupations2

Technology, Industry, Agriculture4

Information Science4

Health Care25

Geographicals3

Biodegradation12

Bacteria11

PAHs4

Aliphatic5

Bioremediation5

Compounds8

Microbial degradation2

Alkanes1

Processes7

Petroleum hydrocarbons3

Pollutants1

Situ2

Organic6

Anaerobic2

Soil8

Bacterial2

Oxygen5

Metabolism4

Biological3

Crude oil2

Contaminants2

Consortium1

Degrade petroleum1

Enzymes1

Saturated or unsaturated1

Physiology2

Organisms1

Ubiquitous1

Sediments1

Sphingomonas2

Activated sludge1

Marine3

Environmental2

Genes1

Benzene1

Inoculum2

Asphalt1

Conditions2