Trehalose metabolism in Saccharomyces cerevisiae during alcoholic fermentation
- Cite this article as:
- Mansure, J., Souza, R. & Panek, A. Biotechnology Letters (1997) 19: 1201. doi:10.1023/A:1018433820097
Strains of Saccharomyces cerevisiae accumulated intracellular trehalose up to 105 mg/g cell dry wt with 90% survival. Viability could be correlated to trehalose levels during ethanol fermentation albeit the disaccharide did not seem to contribute to fermentation yields. Trehalose-6-phosphate synthase showed high activity (up to 279 mu/mg protein) even at high residual sucrose concentration (115 g/l) in the wort suggesting to be a response of yeast cells to the osmotic stress conditions.