FOOD. Science. Technology. Quality

Food. SCIENCE. Technology. Quality

Food. Science. TECHNOLOGY. Quality

Food. Science. Technology. QUALITY

Authors

DANUTA WITKOWSKA, ANITA RYWIŃSKA, MICHAŁ PIEGZA

Title

Production of phytases, cellulases and xylanases by selected filamentous fungi

Abstract

Capability of twelve moulds strain represented three different species: Aspergillus, Trichoderma and Rhizopus to biosynthesis of phytase and cellulase and xylanase as society enzymes in shaking cultures and SSF in present of milled been, corn starch, rape-seed and soy-flour, as a carbon source. Eleven strains was able to phytase biosyntesis, by there was a very intensive differences in enzyme activity, common with carbon source in medium. Milled been was the most effective to produce this enzymes, but also corn starch. The highest activity we observed for Aspergillus niger 551 (34,56 nKat·g-1) and Aspergillus cervinus (31,85 nKat·g-1). In SSF cultures on milled been the biosyntesis of phytase was much more effective that previously culture. Society enzymes, such as cellulase and xylanase in proposal media were biosynthesing on very low level.

Keywords

filamentous fungi, phytase, cellulase, xylanase, carbon source

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