Neshko А. А. RussiaSaratovInstitute of Biochemistry and Physiology of Plants and Microorganisms of the Russian Academy of Sciences, 410049, Russia, Saratov, Entuziastov Avenue, 13аспирантaansanura@rambler.ru Author's articles Biosorption of Cu (II) by an Exopolysaccharide Isolated from Enterobacter Cloacae K7