background: glyphosate (n-phosphonomethyl glycine) is an organophosphorus pesticide with dangerous effects on the environment. in this study, the biodegradation of glyphosate herbicide by halophilic bacteria isolated from qom hoze-soltan lake has been investigated. methods: after sampling and bacterial isolation, native halophilic strains grown in the presence of glyphosate at a wavelength of 6...

background diazinon is one of the most widely used organophosphrous pesticides in the world may affect animals and human. objectives this study was done to assess whether pseudomonas plecoglossicida can grow on diazinon as the sole carbon metabolic source in laboratory and agricultural soil. materials and methods serial dilutions of pure and commercial diazinon in minimal salt medium were made ...

Oil that has undergone biodegradation or photooxidation, contains oxygenated compounds. These compounds cannot be analysed by standard extraction and gaschromatographic methods. Conventional methods do not analyse for polar compounds and would not count them in the analytical results. Studies have shown that highly oxidized oil, including that undergoing biodegradation and photooxidation, is no...

The use of microbial catalysts in the biodegradation of organic compounds has advanced significantly during the past three decades. It has been found that large numbers of microbes co-exist in almost all natural environments, particularly in soils. Many natural and synthetic organic chemicals are readily biodegradable in natural environment. Biodegradation of materials involve initial proximity...

To facilitate the biodegradation of diesel oil, an oil biodegradation bacterial consortium was constructed. The alkane hydroxylase (alkB) gene of Pseudomonas putida GPo1 was constructed in a pCom8 expression vector, and the pCom8-GPo1 alkB plasmid was transformed into Escherichia coli DH5α. The AlkB protein was expressed by diesel oil induction and detected through SDS-polyacrylamide gel electr...

Oily residues that are generated in normal ship operation are considered hazardous wastes. A biodegradation assay with autochthonous microbiota of Bilge Waste Oily Phase (BWOP) was performed in a bioreactor under controlled conditions. Petroleum, diesel oil, and PAH degraders were isolated from bilge wastes. These bacteria belong to the genus Pseudomonas and are closely related to Pseudomonas s...

The kinetics of biodegradation of palm-derived fatty methyl and ethyl esters (Elaeis guineensis biodiesel) by a wild-type aerobic bacterial population was measured at 20 degrees C, as the rate of oxygen uptake by a manometric technique. The methyl and ethyl biodiesels were obtained by potassium-hydroxide catalysed trans-esterification of palm oil, respectively. The bacterial flora included the ...