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Effect of palm oil mill effluent supplementation on cellulase production from rice straw by local fungal isolates


Citation

Roslan, Ahmad Muhaimin and Hassan, Mohd Ali and Abdul Aziz, Suraini and Phang, Lai Yee (2009) Effect of palm oil mill effluent supplementation on cellulase production from rice straw by local fungal isolates. International Journal of Agricultural Research, 4 (5). pp. 185-192. ISSN 1816-4897

Abstract / Synopsis

In this study, Palm Oil Mill Effluent (POME) was selected as supplement in rice straw fermentation to replace commercial inducer due to its high concentration of simple carbohydrate and nitrogenous compounds. The cellulase activity of the enzyme produced were then determined individually and combined (enzyme cocktail) to observe increment in cellulase activity. Individually, filter paperase (FPAse), carboxymethyl cellulase (CMCase) and β-glucosidase activities increase for all 3 fungi used except FPAse for Aspergillus sp. (NEW). Highest FPAse and CMCase activities increment observed was from Phanerochaete chrysosporium which were 72 and 236% increment, respectively, while highest β-glucosidase activity was from Aspergillus terreus (AT) which was 298% increment. Meanwhile in cocktail cellulase, synergistic effect was observed especially for FPAse activity whereby highest FPAse activity observed was by cocktail of all the three species of fungi which show 393% increment. Though CMCase increment was observed in this mode, it was not as high as FPAse where the highest CMCase activity observed was cocktail by the three fungal species which increased by 41%. However, in β-glucosidase activity, only cocktail of NEW and AT showed increment from their average activity which was by 6%. It seems that β-glucosidase activity plays major role in determining the total cellulase activity. In the nutshell, supplementation of POME can improve cellulase activity.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Biotechnology and Biomolecular Sciences
DOI Number: 10.3923/ijar.2009.185.192
Publisher: Academic Journals Inc.
Keywords: Cellulase; Enzyme cocktail; Rice straw; Fungi; Supplement
Depositing User: Samsida Samsudin
Date Deposited: 19 Aug 2010 11:47
Last Modified: 03 Nov 2015 07:52
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3923/ijar.2009.185.192
URI: http://psasir.upm.edu.my/id/eprint/7738
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