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Research Journal of Microbiology
Year: 2007  |  Volume: 2  |  Issue: 12  |  Page No.: 918 - 925

Effects of Phenolic Monomers on the Degradation of 14C-Cellulose by Rumen Fungi

S.W. Zuhainis, N. Abdullah, A.R. Alimon and Y.W. Ho    

Abstract: Anaerobic fungi were isolated from the rumens of cattle, buffalo and goat. A total of 133 isolates were obtained. Three of these isolates namely Neocallimastix frontalis B9, Piromyces mae B6 and Orpinomyces joyonii C3 were studied for their cellulolytic activity by using 14C-cellulose produced by Acetobacter xylinum as the substrate. The effects of phenolic acids on the cellulolytic activity of a fungal isolate N. frontalis B9 from buffalo was also determined. The results showed that among the fungal species, N. frontalis B9 had the highest cellulolytic activity, followed by P. mae B6 and O. joyonii C3. The cellulolytic activities of N. frontalis isolates from buffalo, cattle and goat were not significantly different. Both ρ-coumaric and ferulic acids reduced significantly (p<0.05) the celluloytic activity of N. frontalis B9.

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