β-Mannanase production by aspergillus flavus in solid-state fermentation of palm kernel cake

Wong, Y. P. and Saw, Horng Yuan and Jidon Janaun, and K. Krishnaiah, and A. Prabhakar, (2013) β-Mannanase production by aspergillus flavus in solid-state fermentation of palm kernel cake. Developments in Sustainable Chemical and Bioprocess Technology. pp. 401-408. ISSN 978-1-4614-6207-1

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Abstract

β-Mannanase production in batch solid-state fermentation (SSF) of palm kernel cake (PKC) was evaluated with flasks and a laterally aerated moving bed (LAMB) bioreactor using Aspergillus flavus UMS01. Optimum condition for flask SSF was 110 % moisture content, initial pH 6, 30 °C and particle size 855 μm, yielding 383 U g−1 dry PKC after 120 h. Under the same condition and particle size <5 mm, SSF in LAMB produced 276 U g−1 dry PKC at an optimal gas flow of 4.4 m s−1 in just 96 h. Optimal β-mannanase production was consistent with highest fungal growth and mannose production; to support increasing fungal growth, secretion of β-mannanase increased to degrade mannans in PKC, producing mannose for microbial consumption. A. flavus UMS01 showed promising attributes as a β-mannanase producer via SSF of PKC in flasks and LAMB bioreactor.

Item Type: Book Chapter
Uncontrolled Keywords: Enzyme Production, Fungal Growth, Crude Enzyme, Fungal Biomass, Enzyme Yield
Subjects: T Technology > TP Chemical technology
Divisions: FACULTY > Faculty of Engineering
Depositing User: Munira
Date Deposited: 27 Jun 2018 01:23
Last Modified: 27 Jun 2018 01:23
URI: http://eprints.ums.edu.my/id/eprint/20364

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