Abstract: Background: Agricultural residues such as sweet potato peels represent an underutilized lignocellulosic feedstock for second-generation bioethanol. While acid hydrolysis effectively depolymerizes starch and hemicellulose into fermentable monosaccharides, the relationship between acid concentration, saccharification efficiency, and subsequent microbial....
Keywords: saccharification efficiency, bioethanol precursors, sweet potato peel waste, fermentation conversion, dilute acid hydrolysis, lignocellulosic biomass
[1] Okoro, T. C., Onwumelu, D. C., Igbinidu-Uwuigbe, E. P., Ofoegbu, D. C., Onwuka, M. K., & Nnebeana, S. E. (2025). Determination of optimum conditions for maximum bioethanol yield from the Nigerian sweet potato (Ipomoea batatas (L.) Lam). World Journal of Advanced Engineering Technology and Sciences, 25(1), 45–58.
[2] Abdulla, R., Johnny, Q., Jawan, R., & Sani, S. A. (2022). Agrowastes of banana peels as an eco-friendly feedstock for the production of biofuels using immobilized yeast cells. IOP Conference Series: Earth and Environmental Science, 1103(1), 012022.
[3] Wozniak, A., Kuligowski, K., Swierczek, L., & Cenian, A. (2025). Review of lignocellulosic biomass pretreatment using physical, thermal and chemical methods for higher yields in bioethanol production. Sustainability, 17(1), 287.
[4] El Harchi, M., Kachkach, F. F., & El Mtili, N. (2018). Optimization of thermal acid hydrolysis for bioethanol production from Ulva rigida with yeast Pachysolen tannophilus. South African Journal of Botany, 115, 161–169.
[5] Phwan, C. K., Chew, K. W., Sebayang, A. H., Ong, H. C., Ling, T. C., Malek, M. A., Ho, Y. C., & Show, P. L. (2019). Effects of acids pre-treatment on the microbial fermentation process for bioethanol production from microalgae. Biotechnology for Biofuels, 12(1), 191.