Comparison of different carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis

Annikka Mustranta, Jaakko Pere, Kaisa Poutanen

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Abstract

Spruce sawdust, activated carbon, crushed brick, crushed firebrick and polystyrene have been tested as carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis cells. The isotope technique was used for the determination of the amount of adsorbed cells. The electrochemical nature of the cell surfaces, as well as zeta potentials, specific surface area and average porosity of the carriers were determined. The adsorption of S. cerevisiae and Z. mobilis on the carriers was quite different. The variance in immobilization capacities of the carriers could not be explained by differences in their internal surface areas and porosities. There was a clear tendency to decreasing capacities, with more negative zeta potentials with Z. mobilis. With S. cerevisiae there was no corresponding correlation between immobilization capacity and the carrier's zeta potential. Ethanol fermentation was used as a model to examine the activity, hydrodynamic behaviour and stability of the cell-carrier systems.
Original languageEnglish
Pages (from-to)272-276
JournalEnzyme and Microbial Technology
Volume9
Issue number5
DOIs
Publication statusPublished - 1987
MoE publication typeA1 Journal article-refereed

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Zymomonas
Zeta potential
Yeast
Adsorption
Saccharomyces cerevisiae
Porosity
Immobilization
Sawdust
Polystyrenes
Brick
Specific surface area
Isotopes
Activated carbon
Fermentation
Ethanol
Hydrodynamics
Carbon

Keywords

  • adsorption
  • carriers
  • Saccharomyces cerevisiae
  • Zymomonas mobilis

Cite this

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title = "Comparison of different carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis",
abstract = "Spruce sawdust, activated carbon, crushed brick, crushed firebrick and polystyrene have been tested as carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis cells. The isotope technique was used for the determination of the amount of adsorbed cells. The electrochemical nature of the cell surfaces, as well as zeta potentials, specific surface area and average porosity of the carriers were determined. The adsorption of S. cerevisiae and Z. mobilis on the carriers was quite different. The variance in immobilization capacities of the carriers could not be explained by differences in their internal surface areas and porosities. There was a clear tendency to decreasing capacities, with more negative zeta potentials with Z. mobilis. With S. cerevisiae there was no corresponding correlation between immobilization capacity and the carrier's zeta potential. Ethanol fermentation was used as a model to examine the activity, hydrodynamic behaviour and stability of the cell-carrier systems.",
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Comparison of different carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis. / Mustranta, Annikka; Pere, Jaakko; Poutanen, Kaisa.

In: Enzyme and Microbial Technology, Vol. 9, No. 5, 1987, p. 272-276.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Comparison of different carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis

AU - Mustranta, Annikka

AU - Pere, Jaakko

AU - Poutanen, Kaisa

PY - 1987

Y1 - 1987

N2 - Spruce sawdust, activated carbon, crushed brick, crushed firebrick and polystyrene have been tested as carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis cells. The isotope technique was used for the determination of the amount of adsorbed cells. The electrochemical nature of the cell surfaces, as well as zeta potentials, specific surface area and average porosity of the carriers were determined. The adsorption of S. cerevisiae and Z. mobilis on the carriers was quite different. The variance in immobilization capacities of the carriers could not be explained by differences in their internal surface areas and porosities. There was a clear tendency to decreasing capacities, with more negative zeta potentials with Z. mobilis. With S. cerevisiae there was no corresponding correlation between immobilization capacity and the carrier's zeta potential. Ethanol fermentation was used as a model to examine the activity, hydrodynamic behaviour and stability of the cell-carrier systems.

AB - Spruce sawdust, activated carbon, crushed brick, crushed firebrick and polystyrene have been tested as carriers for adsorption of Saccharomyces cerevisiae and Zymomonas mobilis cells. The isotope technique was used for the determination of the amount of adsorbed cells. The electrochemical nature of the cell surfaces, as well as zeta potentials, specific surface area and average porosity of the carriers were determined. The adsorption of S. cerevisiae and Z. mobilis on the carriers was quite different. The variance in immobilization capacities of the carriers could not be explained by differences in their internal surface areas and porosities. There was a clear tendency to decreasing capacities, with more negative zeta potentials with Z. mobilis. With S. cerevisiae there was no corresponding correlation between immobilization capacity and the carrier's zeta potential. Ethanol fermentation was used as a model to examine the activity, hydrodynamic behaviour and stability of the cell-carrier systems.

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KW - Zymomonas mobilis

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DO - 10.1016/0141-0229(87)90002-0

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