Delignification of Palm-press Fibre by White-rot Fungi for Enzymic Saccharification of Cellulose

Chow Chin, Tong and Saw Lee, Chew and Wahab, Mohd. Noor (1993) Delignification of Palm-press Fibre by White-rot Fungi for Enzymic Saccharification of Cellulose. Pertanika Journal of Tropical Agricultural Science, 16 (3). pp. 193-199. ISSN 0126-6128

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Palm-press fibres were inoculated with fungal mycelium of ten different isolates of white rotfungi namely: Pleurotus sajor-caju I, II and III; Pleurotus florida; Lentinula edodes I, II, III, IV and Vand Ganoderma lucidum. The inoculated fibres were incubated for a period ofup to three months. Of the fungi tested, Pleurotus sajor-caju I, III and P. florida were found to be the best lignin degraders, decreasing the lignin content by as much as 35 %. This corresponded to an increase of 21 % in the digestibility of the fibres. Lignin showed the largest proportionate loss during the growth of these fungi; cellulose and hemicellulose showed the lowest loss for incubation of up to two months. Degradation of hemicellulose seemed to take place later than lignin and cellulose. Some isolates ofL. edodes preferably attacked the lignin component while leaving the cellulose and hemicellulose untouched; its rate of degradation however, was slower than Pleurotus spp. G. lucidum was a poor lignin degrader and under the present conditions preferred to utilise hemicellulose rather than cellulose for growth.

Item Type:Article
Keyword:biological pretreatment, pahn-press fibre, white-rot fungi
Publisher:Universiti Putra Malaysia Press
ID Code:3099
Deposited By: Nasirah Abu Samah
Deposited On:24 Nov 2009 01:31
Last Modified:27 May 2013 07:05

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