ABSTRACT
Commercial production of ethanol and related control of starch content in initial raw materials, glucose, and ethanol contents in fermentation media, BOD index in distiller’s spent grains are topical issues of fermentation biotechnology. Assessment of these components at various stages of production enables optimization of the fermentation process and reduction of material expenses by harmonizing the quality of initial raw materials with the quality and quantity of enzymes and yeast mass used. Constant monitoring of the BOD index in distilleries’ wastes makes it possible to signicantly reduce the ecological load on the environment, preventing the release of easily oxidized organic substances to water bodies, their pollution, and eutrophication (Henze et al. 2002).
