Incidence of Flocculent Yeast Strains Phenotypes in Different Brazilian States during 2021/2022 Season

Patricia R. Kitaka, Claudia Steckelberg

Yeast, Fermentation processes, Bioethanol, Flocculation, Saccharomyces cerevisiae

This work aimed to provide an overview of the incidence of different flocculent yeast strains inhabiting fermentation processes in different states of Brazil during the 2021/2022 season, specifically in the Northeast, Central-West, and Southeast Brazilian regions. In this context, we assessed 259 isolates from 99 samples collected from 17 industrial units located in the following states: Bahia, Goiás, Mato Grosso do Sul, Minas Gerais, and São Paulo during 2021/2022 season. The yeast isolates were molecularly identified using karyotiping and characterized regarding their flocculation capacity. The evaluation resulted in a classification of the strains as follows: NF (non-flocculants); FL (light flocculants) and FP (heavy flocculants).

https://doi.org/10.31871/IJNTR.10.7.9