engleski

Treatment of sugar beet waste in solid-state operating bioreactor

Solid-state fermentation (SSF) is a process performed in the absence of free water on non- soluble materials which can act as physical support and source of nutrients to microorganisms. In this paper white rot fungus Trametes versicolor was cultivated in solid state-operating bioreactor with the air inlet flow of 3 L min-1 kg-1 using sugar beet waste as a substrate. The main objective of the work was to determine the lignin- degrading capacity and TC (total carbon) removal capacity of the applied fungus. The initial material was comprised of 6.92 % lignin, 43.79 % TC, out of which 0.01 % inorganic carbon (IC) and 43.78 % organic carbon (TOC). In comparison to lignin degradation, where 55 % of lignin was degraded, results of TOC analysis indicate TC degradation capacity of 1 % mainly due to the lack of cellulolytic enzymes in Trametes versicolor.

lignin degradation; solid-state fermentation; sugar beet waste; Trametes versicolor

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