ISSN 2736-1624
Frontiers of Agriculture and Food Technology ISSN 7295-2849 Vol. 2 (2), pp. 001-004, February, 2012. © International Scholars Journals
Full Length Research Paper
Studies on the degradation of wood sawdust by Lentinus squarrosulus (Mont.) Singer
Shide EG1, Wuyep PA2* and Nok AJ3
1Department of Chemical Engineering, Ahmadu Bello University, Zaria, Nigeria.
2Department of Biological Science, Ahmadu Bello University, Zaria, Nigeria.
3Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria.
Accepted 11 December, 2011
Abstract
Lentinus squarrosulus (Mont.) Singer, a basidiomycete also known as a white rot fungi, was immobilized on sodium alginate and tested for the effectiveness to degrade wood sawdust (WSD). Untreated and 0.1 M HCl- pretreated WSD samples were separately reacted in a micro-carrier bioreactor (µCBR) and the extent of degradation to form protein, glucose and ethanol was investigated. Pretreatment enhanced the production of both proteins and ethanol by average value of 72.0% over untreated WSD samples, after hydraulic retention time of 72 h. The maximum production of protein observed was 0.94 mg/ml-reaction volume and that of ethanol was 6.6 mg/ml-reaction volume, whereas glucose concentration fluctuated due to interconversion to ethanol. This report shows that L. squarrosulus (Mont.) Singer have the potentials of degrading WSD samples to important chemical compounds that are not hazardous to the environment.
Key words: Lentinus squarrosulus, wood sawdust, sodium alginate, bioreactor, ethanol.