Effect of metal ions on the Growth and Dibenzothiophene biodesulfurization activity of Streptomyces species isolated from oil contaminated soil sites
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2017, Vol 12, Issue 5
Abstract
When fuels are burnt, various hazardous gases are released into the atmosphere. In particular, sulfur oxides released as a result of oxidation of organosulfur compounds present in fuels cause ill effects to humans, air pollution and are sources of acid rain. Hydrodesulfurization (HDS), a traditional process, is routinely employed to remove sulfur content from fossil fuels during oil refining. But, HDS is not effective in removal of sulfur content from all organosulfur compounds especially from heterocyclic organosulfur compounds like Dibenzothiophene. Biodesulfurization (BDS), which employs microbes is an effective and alternative method to HDS to remove sulfur from fossil fuels. The present paper deals with the influence of various metal ions on the growth and biodeulfurization efficiency of two Streptomyces species, Streptomyces sp. VUR PPR 101 and Streptomyces sp. VUR PPR 102 isolated from oil contaminated sites, which can specifically remove sulfur from Dibenzothiophene (DBT), a model compound for biodesulfurization studies, via 4S pathway without breaking the DBT ring. In the present investigation, Fe2+ and Mn2+ were found to be inhibitory towards biodesulfurization activity of both the Streptomyces species. However, Zn2+ ions played an augmented role in enhancing the DBT biodesulfurization activity.
Authors and Affiliations
Praveen Reddy P,, Tirupati Rao YRKV, Uma Maheshwara Rao V*
Keywords
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- EP ID EP391229
- DOI 10.9790/3008-1205056265
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