The Evaluation of the production process of liquid biomass from brewing yeasts on an Erlenmeyer scale.

Yeast liquid biomass

Abstract

Yeasts, especially those of the Saccharomycetaceae family, have been used for centuries to obtain various products, such as fermented foods and beverages. In this sense, the high demand for fermentation products in recent decades has generated an increase in the production of yeast biomass at an industrial level. In Paraguay the number of craft breweries with an intermediate-scale production has increased, who mostly import raw material, such as dry yeast due to the facilities it presents in terms of cost and maintenance. Therefore, the growth of two brewing yeasts Saccharomyces cerevisiae SafAle US-05 which is used for the manufacture of Ale type beer and Saccharomyces pastorianus SafLager S-23 used for the manufacture of Lager type beer in a culture medium based on clarified cane molasses; yeast fermentations were carried out on an Erlenmeyer scale for a preliminary evaluation of their behavior in the formulation of the medium used.