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Comparative study of cellulolytic activity of three rumen fungi on different substrates

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Author(s): Atanasova-Pančevska Natalija | Kungulovski Džoko | Kungulovski Ivan

Journal: Zbornik Matice Srpske za Prirodne Nauke
ISSN 0352-4906

Volume: 2011;
Issue: 120;
Start page: 315;
Date: 2011;
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Keywords: anaerobic fungi | cellulases | gas production | Neocallimastix | Piromyces

ABSTRACT
Anaerobic chytridiomycete fungi are found in the gastrointestinal tracts of many domesticated ruminant and nonruminant herbivores and of a wide variety of wild herbivorous mammals. They produce high levels of cellulases and hemicellulases; these enzymes are regulated by substrate (especially soluble sugars) available to the organisms. The aim of this paper was to do a comparative study of cellulolytic activity of three rumen fungi on carboxymethyl cellulose and Avicel. The capacity of enzymes was determined by monitoring the growth on carboxymethyl cellulose (CMC) and Avicel. Enzyme activity was detected extracellularly in culture supernatants after vegetative growth. All of the isolates degraded CMC and avicel, and exhibited cellulolytic activities (carboxymethyl cellulose-(CMC-ase) and avicelase).
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