Abstract
More than 250,000 tons of wooden crates, cardboard and paper are accumulated each year in Kuwait, most of them in industrial and commercial establishments. Through chemical and microbiological processes, cellulose can be degraded to produce protein-enriched fermented fodder and as a by-product, sugar syrup, which can be further utilized in food or fermentation industries. The cellulose content of sawdust, carboard and newspaper was found to be 52, 73 and 59%, respectively. Most of the cellulose was hydrolyzed to reducing sugars by acid hydrolysis, using H2S04 at 121°C for 45 minutes. Alternatively, two locally isolated thermotolerant cellulose decomposing fungi gave promising results: Neurospora sitophila and Acremonium strictum. The results of enzymatic activity after growth at 40°C was comparable to that of two strains of Trichoderma reesei, NRRL 11236 and 6156, which grow only at 30°C. The protein content of the remaining lignocellulosic waste was in the range of 10 to 14%. The process is now being optimized.
Kuwait Institute for Scientific Research (KISR), Report No. 1505, Kuwait.
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El Nawawy, A.S., El-Rayes, E., Al Hussaini, R.D., Tawheed, A. (1986). Bioconversion of Cellulosic Wastes. In: Alani, D.I., Moo-Young, M. (eds) Perspectives in Biotechnology and Applied Microbiology. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4321-6_16
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DOI: https://doi.org/10.1007/978-94-009-4321-6_16
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