DBPapers
DOI: 10.5593/SGEM2014/B61/S25.030

А STUDY OF THE SURFACE PROPERTIES OF BACTERIA CAPABLE TO BOND HEAVY METALS FOR THE USE IN ENVIRONMENTAL BIOTECHNOLOGY

I. Styriak, D. Styriakova
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-20-9 / ISSN 1314-2704, June 19-25, 2014, Book 6, Vol. 1, 213-218 pp

ABSTRACT
In this study, the bacteria were isolated from heavy metal contaminated environments, and the applicability of their ability to remove heavy metals from polluted environment was evaluated at a laboratory scale. We have identified species with the highest efficiency for the removal of zinc, lead and cadmium from the model solutions. The results of study show that most of species had a hydrophobic cell surface, which probably had an influence on their ability to bound heavy metals. In many species of soil bacteria we have found out the structure of their surface receptors via experiments focused on testing their bond to ECM molecule. Different ability to bond each ECM
molecule will probably be useful in searching good potential absorbents of heavy metals among a microorganism.

Keywords: bacterial surface, heavy metal, absorption