Pilot technology and equipment to produce baking yeast in shorter multiplication cycle

Authors:
Mihaela Begea, Mariana Vlădescu, Gheorghe Bâldea, Paul Begea, Cristina Stoicescu, Cornelia Cîmpeanu, Alexandru Cîrîc, Mariana Liliana Păcală

The paper presents an optimized technology for baking yeast producing. The specific feature of the proposed technology is the multiplication of baking yeast cells in intensive system using the dynamic aeration in reduced multiplication cycle. The yeast multiplication is performed in three steps, in a pilot installation designed in order to process molasses as raw material.

The designed pilot process of baking yeast producing consists in a gradual multiplication of yeast in volumes bigger and bigger, in order to obtain a concentration in cell per unit of volume as much as possible. For every technological multiplication stage a specific hourly feeding diagram was applied for molasses and nutritive salts solutions.