摘要：

Background. The difficult position of Polish agriculture, including one of its branches, i.e. sugar industry, is conducive of search for solutions aiming at an improvement of the condition of industry. One of the potential solutions in this respect may be to focus on alternative raw materials and search for ways to overcome recession in renewable energy sources. The aim of this work was to evaluate the possibilities of using non-starchy materials amp;ndash; sugar materials, without enzymatic treatment for ethanol production using selected yeast strains.#xD; Material and methods. Sugar beet pulp and thick juice, as a semi product from sugar beet, were fermented. The efficiency of the process was assessed using two Saccharomyces cerevisiae preparations amp;ndash; Ethanol Red, Fermiol. Fermentation was run for 72 h at 30amp;deg;C. Quality of produced raw distillates was evaluated using the GC method.#xD; Results. The research on fermentation processes showed that sugar beet pulp let obtain higher ethanol yield amp;ndash; 87% of theoretical than sugar beet thick juice amp;ndash; 84% of theoretical, both for Ethanol Red and Fermiol yeast preparations. Moreover, it was exhibited that the increase of sugar concentration in the fermentation medium obtained from thick juice, statistically importantly influenced ethanol yield decrease, for both yeast preparations. The distillatesamp;rsquo; quality analysis showed the influence of raw materials and microorganism used for fermentation on pollution degree. Distillate obtained from thick juice was characterised with the lowest by-products content after fermentation with Ethanol Red.#xD; Conclusions. The results make additional possibilities for sugar beet utilization in distillery industry and new markets using production surpluses both for sugar beet and its semi-product amp;ndash; thick juice.#xD;

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