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Comparison of the tolerance of cadmium (Cd2+), lead (Pb2+) and their mixtures by Staphylococcus sp. isolated from a water body receiving textile effluent

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dc.contributor.author Aththanayake, A. M. K. C. B.
dc.contributor.author Rathnayake, I. V. N.
dc.contributor.author Deeyamulla, M. P.
dc.date.accessioned 2019-12-10T05:24:22Z
dc.date.available 2019-12-10T05:24:22Z
dc.date.issued 2019
dc.identifier.citation Aththanayake, A. M. K. C. B., Rathnayake, I. V. N. and Deeyamulla, M. P. (2019). Comparison of the tolerance of cadmium (Cd2+), lead (Pb2+) and their mixtures by Staphylococcus sp. isolated from a water body receiving textile effluent. 4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka. p31 en_US
dc.identifier.uri http://repository.kln.ac.lk/handle/123456789/20542
dc.description.abstract Cd2+ and Pb2+ are widely used heavy metals in industries such as electroplating, battery, plastic and pigment production etc. These heavy metals are considered as highly threatening substances to human body, which can cause carcinogenic effects and organ dysfunctions. The isolated Staphylococcus sp. from waste effluent was exposed to a range of single and mixed metal concentrations of Cd2+ and Pb2+ in modified Tris-minimal medium. The growth patterns of Staphylococcus sp. during 24-hour intervals were monitored spectrophotometrically at 600 nm. The effective concentrations (EC50) of Staphylococcus sp. were calculated up to 72 hours. Staphylococcus sp. showed a gradually increasing growth in Pb2+ containing medium, where as a decreasing growth in Cd2+ containing medium was observed after 48 hours. It showed an increasing growth when grown in the presence of both metals. EC50 values at 24, 48 and 72 hours with Cd2+ and their mixture showed a gradual decrease while EC50 values of Pb2+ showed a gradual increase. Results of the study indicated that Staphylococcus sp. has comparatively high tolerance to Pb2+ than Cd2+ and their mixtures en_US
dc.language.iso en en_US
dc.publisher 4th International Research Symposium on Pure and Applied Sciences, Faculty of Science, University of Kelaniya, Sri Lanka en_US
dc.subject Staphylococcus sp. en_US
dc.subject Cd2+ en_US
dc.subject Pb2+ en_US
dc.subject EC50, en_US
dc.subject Tolerance en_US
dc.title Comparison of the tolerance of cadmium (Cd2+), lead (Pb2+) and their mixtures by Staphylococcus sp. isolated from a water body receiving textile effluent en_US
dc.type Article en_US


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