ISSN 2756-3413
African Journal of Virology Research ISSN 2756-3413 Vol. 20 (4), pp. 001-010, April, 2026. Available online at www.internationalscholarsjournals.org © International Scholars Journals
Full Length Research Paper
Maximizing Amylase Yield from Yam Peels via Solid State Fermentation and Response Surface Modeling
Samuel Kwatia1* Victoria Pearl Dzogbefia1 and Isaac William Ofosu2
1Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
2Department of Food Science and Technology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana.
Accepted 12 November, 2025
The study involved the production of amylase from Aspergillus niger grown on yam peels in solid state fermentation. The process parameters: temperature, pH (initial) and incubation time were optimized for maximum amylase production using central composite design (CCD) of response surface methodology (RSM). Temperature was the most significant (p<0.05) parameter and the maximum interaction occurred between temperature and incubation time. The results of the study indicated that amylase is maximized (30.95 U/ml-min) at optimized levels of 49.53°C, 5.95 and 104 h for temperature, pH (initial) and incubation periods, respectively.
Keywords: Response surface methodology (RSM), Aspergillus niger, central composite design, solid state fermentation (ssf), amylase, production, optimization.