Industrial antifoam agents impair ethanol fermentation and induce stress responses in yeast cells.

ABSTRACT: The Brazilian sugarcane industry constitutes one of the biggest and most efficient ethanol production processes in the world. Brazilian ethanol production utilizes a unique process, which includes cell recycling, acid wash, and non-aseptic conditions. Process characteristics, such as extensive CO₂ generation, poor quality of raw materials, and frequent contaminations, all lead to excessive foam formation during fermentations, which is treated with antifoam agents (AFA). In this study, we have investigated the impact of industrial AFA treatments on the physiology and transcriptome of the industrial ethanol strain Saccharomyces cerevisiae CAT-1. The investigated AFA included industrially used AFA acquired from Brazilian ethanol plants and commercially available AFA commonly used i

SUBMITTER: Nielsen JC 

PROVIDER: S-EPMC5719808 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature