Enhancing adhesion of yeast brewery strains to chamotte carriers through aminosilane surface modification

World J Microbiol Biotechnol. 2013 Jul;29(7):1307-16. doi: 10.1007/s11274-013-1294-4. Epub 2013 Feb 19.

Abstract

The adhesion of cells to solid supports is described as surface-dependent, being largely determined by the properties of the surface. In this study, ceramic surfaces modified using different organosilanes were tested for proadhesive properties using industrial brewery yeast strains in different physiological states. Eight brewing strains were tested: bottom-fermenting Saccharomyces pastorianus and top-fermenting Saccharomyces cerevisiae. To determine adhesion efficiency light microscopy, scanning electron microscopy and the fluorymetric method were used. Modification of chamotte carriers by 3-(3-anino-2-hydroxy-1-propoxy) propyldimethoxysilane and 3-(N, N-dimethyl-N-2-hydroxyethyl) ammonium propyldimethoxysilane groups increased their biomass load significantly.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Adhesion*
  • Cells, Immobilized
  • Ceramics
  • Food Microbiology / methods*
  • Industrial Microbiology / methods*
  • Organosilicon Compounds / metabolism*
  • Saccharomyces / physiology*

Substances

  • Organosilicon Compounds