EVALUATION OF XYLANASE PRODUCTION FROM FILAMENTOUS FUNGI WITH DIFFERENT LIFESTYLES

Autor:	Yasser Bakri, Y. Akeed, Mohammed Jawhar, M.I.E Arabi
Rok vydání:	2020
Předmět:	Aspergillus biology Pulp (paper) Pyrenophora engineering.material biology.organism_classification Enzyme assay Penicillium Xylanase engineering biology.protein Food science Incubation Cochliobolus Food Science
Zdroj:	Acta Alimentaria. 49:197-203
ISSN:	1588-2535 0139-3006
DOI:	10.1556/066.2020.49.2.9
Popis:	Xylanase plays an important role in the food, feed, and pulp/paper industry. Filamentous fungi have been considered as useful producers of this enzyme from an industrial point of view, due to the fact that they excrete xylanases into the medium. In this study, four fungal species belonging to different genera, i.e. Aspergillus, Cochliobolus, Pyrenophora, and Penicillium were isolated from different sources and compared for their ability to produce xylanase in submerged culture. The fungal species showed enzyme activity as determined by dinitrosalicylic acid (DNS) method. It was found that the two saprophytic Aspergillus strains, i.e A. terreus (Fss 129) and A. niger (SS7) had the highest xylanase activity of 474 and 294 U ml–1 at pH 7 and 8, respectively, in the presence of corn cob hulls after 120 h of incubation. The production of xylanase seemed to be strongly influenced by the interactive effect of initial pH on the fungi. Interestingly, xylanase was better produced by the saprophytic fungi of Aspergillus and Penicillium than by the plant pathogenic ones of Cochliobolus and Pyrenophora. This work provides additional information to support future research on fungi with different lifestyles for food industrial production of xylanase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2fd9bd5a61bee30df819b24485f31989 https://doi.org/10.1556/066.2020.49.2.9 Zobrazit plný text záznamu