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Vermiculite as a new carrier for extracellular protease production by Aspergillus spp. under solid-state fermentation
Alexander A Osmolovskiy1, Elizaveta A Popova1, Valeriana G Kreyer1
1Department of Microbiology, Faculty of Biology, Lomonosov Moscow State University, Moscow, Russian Federation.
Abstract:
A new method has been developed to increase the productivity of aspergilli - producers of extracellular proteinases based on their cultivation on vermiculite under solid-state fermentation conditions. The productivity of the mycelium Aspergillus ochraceus L-1 and Aspergillus ustus 1 was 3-18 times higher not only in comparison with submerged cultivation, but also in comparison with growth on other carriers studied under solid-state fermentation conditions. Vermiculite can be considered as a new promising carrier for solid-state fermentation of micromycetes.
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