Bioremediation of Zinc by Streptomyces aureofacienes

Research Article

Bioremediation of Zinc by Streptomyces aureofacienes

Osama H. EL Sayed, Hala M. Refaat, Mahmoud A. Swellam, Mahmoud M. Amer, Aziza I. Attwa and Mohamed E. El Awady

Heavy metals are generally toxic to microorganisms, especially if they exist at high concentrations. Environmental pollution particularly in soil with heavy metals can stem from industrial activities or sewage discharges. In this study, twelve Streptomyces species isolated from Egyptian soil and identified by using physiological tests as Bergey’s manual was assessed quantitatively to the effects of zinc using plate diffusion method. Biosorption of zinc by biomass microorganisms is an innovative and alternative technology for removal of these pollutants due to their good performance, low cost and large available quantities. Experiments in liquid culture were used to determine concentration ranges of the metals at which the most tolerant species could grow showed that Streptomyces aureofacienes had maximum uptake of zinc (734.8 μg g^-1 biomass).

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Osama H. EL Sayed, Hala M. Refaat, Mahmoud A. Swellam, Mahmoud M. Amer, Aziza I. Attwa and Mohamed E. El Awady, 2011. Bioremediation of Zinc by Streptomyces aureofacienes. Journal of Applied Sciences, 11: 873-877.

DOI: 10.3923/jas.2011.873.877

URL: https://scialert.net/abstract/?doi=jas.2011.873.877

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Authors

Osama H. EL Sayed

Hala M. Refaat

Mahmoud A. Swellam

Mahmoud M. Amer

Aziza I. Attwa

Mohamed E. El Awady

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Research Article

Bioremediation of Zinc by Streptomyces aureofacienes

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