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Selection of potential fungi for production of cellulase-poor xylanase from rice straw


Citation

Zahari, Nur Idayu and Md. Shah, Umi Kalsom and Mohamed Asa’ari, Ainun Zuriyati and Mohamad, Rosfarizan (2015) Selection of potential fungi for production of cellulase-poor xylanase from rice straw. BioResources, 11 (1). pp. 1162-1175. ISSN 1930-2126

Abstract

Recently, xylanase has attracted attention in the pulp and paper industry because of its bleach-boosting properties, which reduces chemical consumption during the bleaching process. Four fungi species, namely Penicillium oxalicum T3.3, Aspergillus niger ATCC 6275, Colletotrichum gloeosporioides, and Pycnoporus sanguineus, were studied to select which fungi can best produce cellulase-poor xylanase using rice straw as a substrate. The fungi were screened for xylanase production based on the clear zone formation on a malt extract agar (MEA) plate containing xylan. P. oxalicum T3.3 and A. niger ATCC 6275 showed greater clear zone formation on the agar plate than the other two studied fungi. These fungi were grown in a liquid medium containing rice straw as the substrate. P. oxalicum T3.3 showed the highest xylanase activity (65.89 U/mL) with lowest carboxymethyl cellulase (CMCase) (1.88 U/mL) and filter paperase (FPase) activity (0.16 U/mL) after four days of fermentation at 30 °C. P. oxalicum T3.3 produced higher xylanase activity when rice straw was used as a substrate compared to commercial xylan. Thus, cellulase-poor xylanase produced from P. oxalicum T3.3 has high potential for biobleaching application in the pulp and paper industry in terms of technical and biological performance and economical aspects.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Institute of Tropical Forestry and Forest Products
Publisher: College of Natural Resources
Keywords: Xylanase; Penicillium oxalicum T3.3; Rice straw; Biobleaching; Pulp and paper
Depositing User: Ms. Ainur Aqidah Hamzah
Date Deposited: 17 Jun 2022 01:59
Last Modified: 17 Jun 2022 01:59
URI: http://psasir.upm.edu.my/id/eprint/46252
Statistic Details: View Download Statistic

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