Molasses is mainly used in fermentation technologies to produce ethanol (nowadays as ethanol fuel
production) or in agriculture as feed. It can also be applied as a raw material in further biotechnologies, as
a source of nitrogen compounds (e.g. amino acids, betain), as an activator for microbial elimination of
toxic products from waste water or soil, or as an additive in veterinary products, and many others.
In the traditional sugar technology where no ethanol fuel production is implemented, the recoverable
sugar content in molasses should be minimal. Therefore, the paper presents a mathematical model of
crystallization to optimise the C sugar operation. The described model has been verified practically in
three Czech sugar factories.