TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The peroxygen-releasing compound is an alkali metal, alkaline earth metal or transition metal compound of a percarbonate, perborate and/or peroxide. The peroxygen-releasing compound is sodium percarbonate, sodium perborate (both preferred), sodium peroxide, calcium peroxide, magnesium peroxide or zinc peroxide. The peroxygen-releasing compound is used in hydrate form. The peroxygen-releasing compound is added in an amount to provide a concentration of the peroxygen-releasing compound of 0.0001- 5% (preferably 0.002-1%), based on the total weight of the fermentation broth.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Method: The method further comprises adding nutrients to one or more of the inoculant, fermentable sugar and process water or directly to the fermentation vessel. The peroxygen-releasing compound is added to the inoculant, fermentable sugar or process water prior to introducing the inoculant, fermentable sugar or process water into the fermentation vessel. The inoculant is a yeast inoculums produced by contacting a yeast starter culture and a nutrient composition in a propagation tank. The fermentation process is a batch fermentation, and the peroxygen-releasing compound is added to the fermentation vessel prior to adding the fermentable sugar to the fermentation vessel. The fermentation process is a continuous fermentation process and the peroxygen-releasing compound is added in the yeast propagation step to produce the yeast inoculum or during the contacting step (iv). The fermentable sugar is derived from corn using a dry grind/wet mill process. The method further comprises following the contacting step, adding a peroxygen-releasing compound to the product of the contacting step. The step of providing the fermentable sugar comprises producing and storing a carbohydrate feedstock, where the peroxygen-releasing compound is added to the carbohydrate feedstock, and the carbohydrate feedstock comprises a fermentable sugar, and the carbohydrate content of the feedstock is at least 1 wt.%, preferably 1-70 wt.%, based on the total feedstock weight and the peroxygen-releasing compound is added in an amount to provide 0.0001-5% (preferably 0.001-1%) of the peroxygen-releasing compound, based on total weight of the feedstock. Preferred Components: The fermentable sugar is sugarcane- or sugar beet- or molasses-based fermentable sugar. The feedstock is a sugar-based/cellulose feedstock.