Microbial biodegradation

About: Microbial biodegradation is a research topic. Over the lifetime, 1647 publications have been published within this topic receiving 75473 citations.

Model for Microbial Degradation of Nonpolar Organic Contaminants in a Soil Slurry Reactor

Abstract: An extended radial pore effective diffusion model is presented, describing the (microbial) decontamination of oil contaminated soil in a slurry. The aim of the model is to estimate the biodegradati...

Microbial degradation of petrochemical waste-polycyclic aromatic hydrocarbons

Abstract: Petrochemical industry is one of the fastest growing industries. This industry has immense importance in the growth of economy and manufacture of large varieties of chemicals. The petrochemical industry is a hazardous group of industry generating hazardous waste containing organic and inorganic compounds. In spite of the present treatment process, the hazardous waste compounds are found untreated to the acceptable level and found discharged at soil–water environment resulting into the persistent organic–inorganic pollutant into the environment. The bioremediation will be the innovative techniques to remove the persistent pollutants in the environment. Petrochemical contaminated site was found to be a rich source of microbial consortium degrading polycyclic aromatic hydrocarbons. Indigenous microbial consortiums were identified and used for bioremediation of polycyclic aromatic hydrocarbons (naphthalene and anthracene) at the concentrations of 250, 500, and 750 ppm. The potential microorganism was also identified for naphthalene and anthracene, and their bioremediation was studied at varying concentrations. The bioremediation with consortium was found to be comparatively more effective than the potential microorganism used for bioremediation of each compound. Pseudomonas aeruginosa a potential organism was identified by 16S rRNA and further studied for the gene responsible for the PAH compounds. Indigenous microorganism as a consortium has been found effective and efficient source for remediation of organic compound—Polycyclic aromatic hydrocarbon and this will also be applicable to remediate the toxic compounds to clean up the environment.

Biotransformations : bioremediation technology for health and environmental protection

Abstract: Preface. List of abbreviations. List of contributors. 1. Bioremediation of compounds hazardous to health and the environment: an overview (R. Brigmon, D. Camper, F. Stutzenberger). 2. Microbial degradation of polychlorinated biphenyls (PCBs) in the environment (W.-R. Abraham). 3. Biodegradation of fuel oils and lubricants: soil and water bioremediation options (S. Wilkinson, S. Nicklin, J.L. Faull). 4. Bioremediation technology for environmental protection through bioconversion of agro-industrial wastes (T.N. Lakhanpal). 5. Enzymatic transformations of xenobiotics of health and environmental concern (V.P. Singh). 6. Microbial degradation of chlorobenzoates (CBAs): biochemical aspects and ecological implications (G. Baggi). 7. Microbial degradation of insecticides: an assessment for its use in bioremediation (D.K. Singh). 8. Microbial variables for bioremediation of heavy metals from industrial effluents (R. Gupta, R.K. Saxena, H. Mohapatra, P. Ahuja). 9. Lactic acid bacteria in winemaking: influence on sensorial and hygienic quality (A. Lonvaud-Funel). 10. Microbial transformation of aflatoxins (T. Shantha, M. Archana). 11. Biotransformations of tannery wastes (V.P. Singh). 12. Oxidation of organic and inorganic sulfur compounds by aerobic heterotrophic marine bacteria (J.M. Gonzalez, et al.). 13. Lignin degradation by bacteria (A.P. Iyer, A. Mahadevan). 14. Microbial bioremediation of textile effluents (R.S. Upadhyay). 15. Biodegradation of diaryl esters: bacterial and fungal catabolism of phenylbenzoate and some of its derivatives (S. Schmidt). 16. Degradation of natural rubber products by Nocardia species (A. Tsuchii, Y. Tokiwa). 17. Sewage treatment systems: microbiological aspects (V.P. Singh, K. Bhatnagar). 18. Electro-physical properties of microbial cells during the aerobic metabolism of toxic compounds (O.V. Ignatov, S. Yu. Shchyogolev, V.D. Bunin, V.V. Ignatov). 19. Microbial degradation of sulfur compounds present in coal and petroleum (B.K. Gogoi, R.L. Bezbaruah). 20. Algae-dependent bioremediation of hazardous wastes (I. Kaur, A.K. Bhatnagar). 21. Some physiological characteristics of saprotrophic and ectomycorrhizal fungi producing sporophores on the urea-treated forest floor (T. Yamanaka). 22. Bioremediation of contaminated water bodies (B.K. Singh, V.P. Singh, M.N. Singh). 23. Biotransformations and biodegradation in extreme environments (A.V. Palumbo, et al.). 24. Bioremediation of hazardous ethylenebisdithiocarbamate (EBDC) fungicides (D.K. Singh). Index.

Microbial degradation of organophosphonates by soil bacteria

Abstract: Bacteria that can utilize glyphosate (GP) or methylphosphonic acid (MPA) as a sole phosphorus source have been isolated from soil samples polluted with organophosphonates (OP). No matter which of these compounds was predominant in the native habitat of the strains, all of them utilized methylphosphonate. Some of the strains isolated from GP-polluted soil could utilize both phosphorus sources. Strains growing on glyphosate only were not isolated. The isolates retained high destructive activity after long-term storage of cells in lyophilized state, freezing to −20°C, and maintenance on various media under mineral oil. When phosphorusstarved cells (with 2% phosphorus) were used as inoculum, the efficiency of OP biodegradation significantly increased (1.5-fold).