CONTROL METHOD FOR CONTAMINANT STRAINS USING SULFITE IN ETHANOL FERMENTATION

摘要

By treating the cells recovered during ethanol fermentation with a sulfite source, it is possible to control contaminants that reduce yeast growth and ethanol yield. Sulfite sources are used under aerobic conditions at salt concentrations of at least 100 pm based on the visceral differences of yeasts and contaminants therein, and may further improve contaminant control effects by adding hydrogen peroxide below a certain concentration.