Advanced Research Journal of Microbiology ISSN: 1718-3499 Vol. 5(4), pp.219 -227, May, 2018.  © Advanced Scholars Journals

Full length Research paper

 Mathematical optimization of medium mechanism for chromate decrease by halophytic Streptomyces sp. MS-2

Biola Adeola

Biotechnology Department, Faculty of Science,University of Ibadan, Nigeria

E-mail: [email protected].

Accepted  20  April,  2018

Abstract

Broad utilization of hexavalent chromium Cr(VI) in different mechanical applications has caused generous natural tainting. A marine bacterium, Streptomycin sp. MS-2 demonstrated a high Cr(VI) diminishment execution. Streptomyces sp. MS-2 totally decreased 75 mg/l Cr(VI) inside 72 h of development. The adequacy of the bacterium for diminishing Cr(VI) under various conditions was assessed. Ideal pH and temperature were 7.0 and 37oC, individually. Factual screening of medium segments for Cr diminishment by Streptomyces sp. MS-2 was done by Plackett– Burman outline. Peptone, yeast separate, inoculum size, and volume of the medium were appeared as noteworthy parts affecting Cr(VI) diminishment. By applying a confirmation explore, Streptomyces sp. MS-2 totally decreased 75 mg of Cr(VI) to Cr(III) inside 12 h. This improvement procedure prompted a 6-overlap increment in the diminishment rate. This holds awesome guarantee for detoxification of Cr(VI) under an extensive variety of ecological conditions.

Key words: Ecological, Streptomyces MS-2, hexavalent chromium, Plackett–Burmandesign Detoxification