Influence of specific growth limitation on biosorption of heavy metals by Saccharomyces cerevisiae [An article from: International Biodeterioration & Biodegradation]

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Description:
Biosorption of Cd^2^+, Cu^2^+ and Ag^+ ions by C-, N-, P-, S-, Mg- and K-limited cells of Saccharomyces cerevisiae was examined. Raman spectroscopy and analysis of elemental composition were used to identify differences between individual yeast cultures. K-, Mg- and C-limited cells accumulated the greatest amounts of Cd^2^+ ions. The greatest amount of Cu^2^+ ions was bound by biomass grown in K-limited medium. P-limited cells bound the greatest amount of Ag^+ ions, but in contrast they had the lowest sorption capacity for Cd^2^+ ions. The smallest amounts of Cu^2^+ and Ag^+ ions was bound by biomass grown in S-limited medium.