Press Release on Biodegradation Research: September-2018

Deepwater Horizon oil spill: Oil biodegradation inhibited in deep-sea sediments

Degradation rates of oil were slower within the dark and cold waters of the depths of the Gulf of Mexico than at surface conditions, in step with a world team of geoscientists attempting to grasp wherever the oil went throughout the Deepwater Horizon oil spill. [1]

Biodegradation of Dinitroxylene by nitrate-reducing and sulfate-reducing cultures collected from contaminated sites

The production and process of military nitroaromatic explosives has diode to the contamination of soil and water by energetic compounds. These teams of nitroaromatic explosives represent Associate in Nursing environmental hazard owing to their comparatively recalcitrant nature to natural attenuation and their pharmacology and doubtless agent effects on variety of microorganisms. Recently, isomers of DNX were detected at TNT and DNTs contaminated sites. As cluster members of the nitroaromatic explosives, DNX isomers have similar chemical structure to TNT and DNTs, and so ar postulated to create similar risks to human health and therefore the atmosphere. Biological treatment processes are typically thought-about initial, since they’re the smallest amount high-ticket means that of destroying contamination compounds, and cost-least injury to the environments. Therefore, this study was centered on developing a substantial biological treatment strategy for remediating DNX contaminated sites, the flexibility of 2 antecedently obtained enrichment cultures (nitrate-reducing and sulfate-reducing cultures) to metabolise DNX was examined. [2]

Biodegradation of metformin and guanylurea by aerobic cultures enriched from sludge

Sewage sludge from a municipal waste matter treatment facility using activated sludge method was pre-incubated with variable substrates and mixtures of substrates as well as Glucophage (MET), guanylurea (GUA) and aldohexose. The biomass from enriched cultures severally utilising MET and glucose/GUA was then accustomed investigate the dynamics of aerobic biodegradation of MET and GUA, severally, as individual substrates in batch reactors. The results showed that GUA is fully degraded as a atomic number 7 supply once aldohexose is provided as a carbon and energy supply. [3]

Biodegradation of nodularin and other nonribosomal peptides by the Baltic bacteria

Microcystins (MCs) and nodularin (NOD), the toxic nonribosomal peptides (NRPs) created by true bacteria, square measure thought-about as natural pollutants of the many aquatic ecosystems. Removal of the toxins income chiefly through biodegradation and/or photolysis. during this study, microbic degradation of NOD and different NRPs created by Nodularia spumigena was investigated. Both, natural microorganism consortia and individual strains from the Southern sea were used. microorganism samples were additionally screened for the presence of mlrA-D genes, antecedently established to be concerned within the protein breakdown of toxic cyanopeptides. [4]

Biodegradation of Palm Oil Mill Effluent (POME) and Lipase Activity by Pseudomonas aeruginosa, Bacillus subtilis, and Candida albicans

Aims: to guage the biodegradation of oil mill effluent and enzyme activity by bacteria genus aeruginosa, Bacillus subtilis and candida treatment.

Place and period of Study: Department of biological science, University of Nigerian capital, Nigerian capital and biological science laboratory of the National Institute of Pharmaceutical analysis Development (NIPRD), Idu, FCT-Abuja, Nigeria, between Gregorian calendar month 2014 and Gregorian calendar month 2014.

Methodology: Some chemical science properties of the fruit were analysed. Samples of fruit were inoculated with bacteria genus aeruginosa, Bacillus subtilis and candida. microorganism growth was measured by determinant the entire viable counts during a medium containing fruit. The isolates were screened for enzyme activity and degradation merchandise were determined by gas chromatography-mass spectrum analysis (GC-MS) analysis. [5]

Reference

[1] Deepwater Horizon oil spill: Oil biodegradation inhibited in deep-sea sediments

Date: July 19, 2018, Source: Penn State (web link)

[2] Biodegradation of Dinitroxylene by nitrate-reducing and sulfate-reducing cultures collected from contaminated sites

Gao F, Gui L, Gillham RW, Liu F. Biodegradation of Dinitroxylene by nitrate-reducing and sulfate-reducing cultures collected from contaminated sites. InEGU General Assembly Conference Abstracts 2018 Apr (Vol. 20, p. 2324). (web link)

[3] Biodegradation of metformin and guanylurea by aerobic cultures enriched from sludge

Briones RM, Zhuang WQ, Sarmah AK. Biodegradation of metformin and guanylurea by aerobic cultures enriched from sludge. Environmental Pollution. 2018 Aug 28. (web link)

[4] Biodegradation of nodularin and other nonribosomal peptides by the Baltic bacteria

Toruńska-Sitarz A, Kotlarska E, Mazur-Marzec H. Biodegradation of nodularin and other nonribosomal peptides by the Baltic bacteria. International Biodeterioration & Biodegradation. 2018 Oct 1;134:48-57. (web link)

[5] Biodegradation of Palm Oil Mill Effluent (POME) and Lipase Activity by Pseudomonas aeruginosa, Bacillus subtilis and Candida albicans

  1. L. Okwute1*, E. Stephen2 and P. I. Anyanwu1

1Department of Microbiology, University of Abuja, P.M.B. 117, Gwagwalada- Abuja, Nigeria.

2Department of Microbiology, Kogi State University, P.M.B. 1008, Anyigba-Kogi State, Nigeria. (web link)

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