The effect of copper(II) ions on the growth and bioaccumulation properties of some yeasts

Donmez G., Aksu Z.

PROCESS BIOCHEMISTRY, vol.35, no.1-2, pp.135-142, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35 Issue: 1-2
  • Publication Date: 1999
  • Doi Number: 10.1016/s0032-9592(99)00044-8
  • Journal Name: PROCESS BIOCHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.135-142
  • Keywords: bioaccumulation, copper(II), adapted and growing yeasts, THIOBACILLUS-FERROOXIDANS BIOMASS, SACCHAROMYCES-CEREVISIAE, HEAVY-METALS, REMOVAL, BIOSORPTION, ACCUMULATION, WATER
  • Ankara University Affiliated: No

Abstract

The influence of copper(II) ions on the growth and bioaccumulation properties of adapted and growing cells of Saccharomyces cerevisiae, Kluyveromyces marxianus, Schizosaccharomyces pombe and Candida sp. was studied. The level of copper(II) accumulation and microbial growth were dependent on the pH and initial copper(II) concentration. Optimum pH values for maximum copper(II) accumulation were determined as 4.0. 5.0, 4.0 and 4.0 for S, cerevisiae, K. marxianus, S. pombe and Candida sp., respectively. The results indicated that Candida sp. and K. marxianus are able to accumulate large amounts of copper(II) from feed medium at higher copper(II) concentrations without loosing their biological activities. (C) 1999 Elsevier Science Ltd. All rights reserved.