ISSN 2756-3707
International Journal of Histology and Cytology ISSN 2447-9535 Vol. 2 (4), pp. 155-157, April, 2015. © International Scholars Journals
Full Length Research Paper
Effect of the various lignocellulosic source on the yield of cellulase by the growth of Aspergillus flavus
OJUMU, Tunde Victor1*, SOLOMON, Bamidele Ogbe2, BETIKU, Eriola2, LAYOKUN, Stephen Kolawole2 and AMIGUN, Bamikole3
1Engineering Materials Development Institute, P.M.B 611, Akure Nigeria.
2Department of Chemical Engineering, Obafemi Awolowo University, Ile-Ife, Nigeria.
3Department of Food Science and Technology, Federal Polytechnic Ado-Ekiti, Ekiti State, Nigeria.
*Correspondence Author; E-mail: [email protected]
Accepted 11 September 2014
Abstract
Bagasse, corncob and sawdust were used as lignocellulosic substrates for the production of cellulase enzyme using Aspergillus flavus after ballmilling and pretreatment with caustic soda. From the fermentation studies, sawdust gave the best result with an enzyme activity value of 0.0743IU/ml while bagasse and corncob gave 0.0573IU/ml and 0.0502IU/ml respectively. The three lignocellulosics gave their maximum enzyme activities at about the twelfth hour of cultivation, suggesting that the 12th hour is the optimum time when the enzyme may be harvested.
Key words: Aspergillus flavus, cellulase activity, lignocellulosics.