The main purpose of an antiseptic is to combat pathogenic microflora. In modern conditions, alcohols and their mixtures (ethyl, propyl, isopropyl), salts of various chemicals, boric acid, QAC (quaternary ammonium compounds), iodine solution, etc. are used to fight. Antibiotics are an effective means of suppressing pathogenic microflora.
In ethanol production, the use of antibacterial agents is widely used, since the "purity" of the process plays an important role in achieving optimal conditions for the life of yeast, ensuring the conversion of starch into ethanol without loss.