Related Experiment Video
Updated: Aug 14, 2026

Saccharomyces cerevisiae Exponential Growth Kinetics in Batch Culture to Analyze Respiratory and Fermentative Metabolism
Published on: September 30, 2018
Relationship between the sterol content of yeast cells and their fermentation activity in grape must
F Larue1, S Lafon-Lafourcade, P Ribereau-Gayon
1Institut d'oinologie, Université de Bordeaux II et Institut National de la Recherche Agronomique, 33405 Talence, France.
Abstract:
In grape must of high sugar concentration, yeast growth, the viability rate of "resting" yeast cells, and fermentation activity were stimulated under certain conditions of aeration and temperature. This stimulation might be interpreted as being a result of the yeast cell sterol content. The addition of certain sterols to the fermenting medium was able to increase this sterol content. According to aeration conditions of the medium, which determined the sterol content of yeasts, the sterols added in the medium acted as (i) growth factors, (ii) fermentation inhibitors, and (iii) survival factors for the yeast.
More Related Videos
Related Concept Videos
Microbes in Beverage Production
Bioreactor Controls-III
Production of Alcohol
Yeast Signaling
Microbial Fermentation
Microbes in Food Production

