Bioaccumulation and biosorption of copper(II) and chromium(III) from aqueous solutions by Pichia stipitis yeast

Yilmazer P., SARAÇOĞLU N.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, vol.84, no.4, pp.604-610, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 84 Issue: 4
  • Publication Date: 2009
  • Doi Number: 10.1002/jctb.2088
  • Journal Name: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.604-610
  • Keywords: Pichia stipitis, bioaccumulation, biosorption, Cu(II), Cr(III), HEAVY-METAL IONS, SACCHAROMYCES-CEREVISIAE, ASPERGILLUS-NIGER, RHIZOPUS-ARRHIZUS, CANDIDA SP, REMOVAL, GROWTH, CR(VI), CU(II), WASTEWATERS
  • Gazi University Affiliated: Yes

Abstract

BACKGROUND: Bioaccumulation a nod biosorption by Pichia stipitis yeast has not yet been explored. This paper evaluates, for the first time, the use of both viable and nonviable P. stipitis yeast to eliminate Cu(II) and Cr(III) from aqueous solutions. The effect of Cu(II) and Cr(III) ions on the growth and bioaccumulation properties of adapted and nonadapted biomass is investigated as a function of initial metal concentration. Binding capacity experiments using nonviable biomass are also performed as a function of temperature.