Addis Ababa Science and Technology University, College of Natural and Applied Sciences, Department of Industrial Chemistry, P.O. Box 16417, Addis Ababa, Ethiopia
Yakob Godebo Godeto
Addis Ababa Science and Technology University, Nanotechnology Center of Excellence, P.O. Box 16417, Addis Ababa, Ethiopia
Salah Hamza Sherif
Hawassa University, College of Natural and Computational Sciences, Department of Chemistry, Hawassa, Ethiopia
Taju Sani
Addis Ababa Science and Technology University, College of Natural and Applied Sciences, Department of Industrial Chemistry, P.O. Box 16417, Addis Ababa, Ethiopia; Addis Ababa Science and Technology University, Nanotechnology Center of Excellence, P.O. Box 16417, Addis Ababa, Ethiopia
Ibrahim Nasser Ahmed
Addis Ababa Science and Technology University, College of Natural and Applied Sciences, Department of Industrial Chemistry, P.O. Box 16417, Addis Ababa, Ethiopia; Addis Ababa Science and Technology University, Nanotechnology Center of Excellence, P.O. Box 16417, Addis Ababa, Ethiopia; Corresponding author. Addis Ababa Science and Technology University, College of Natural and Applied Sciences, Department of Industrial Chemistry, P.O. Box 16417, Addis Ababa, Ethiopia.
Teff (Eragrostis tef) is a staple crop and holds the biggest share of grains cultivated area in Ethiopia, consequently, a large quantity of Teff straw is produced. The Teff straw was pretreated for the first time with Chromium-based Metal-Organic Framework, MIL-101(Cr), assisted hydrothermal method at temperatures ranging from 160 to 240 °C for 1/2, 1, or 2 h time independently. With an increase of pretreatment severity, the yield of total reducing sugar (TRS) was increased until reaching maximum (185 mg g−1). The identified optimum hydrothermal pretreatment condition, (180 °C and 1 h), had a feature of higher TRS yield and lower furfural concentration. The morphological analysis showed that treated Teff straw had degraded structure, higher surface area, and distorted bundles than native Teff straws. This study insight into MOFs’ application in lignocellulose biomass processing, and optimizing the pretreatment condition of Teff straw biomass.
