Chemistry and Physics Joint Colloquium: “Advances in Ultrasound- and Cavitation-Assisted Catalyzed Conversions of Edible and Non-Edible Biomass to Biorenewable Fuels” — Wednesday, January 26, 2022 at 4 PM
Yusuf G (Debo) Adewuyi, Ph.D.
Chemical, Biological and Bio Engineering Department
North Carolina A&T State University
Wednesday, January 26, 2022, 4 PM *Please note different day of the week
Salem Hall 012 *Please note different location
Video Link will be available if needed
To obtain the video conference link, contact firstname.lastname@example.org
A reception will be held outside Salem Hall* at 3:30 PM prior to the colloquium. All interested persons are cordially invited to attend.
*Due to Covid restrictions, the university requires all food be served and consumed outside. Inclement weather arrangements provided if needed.
Enzymatic hydrolysis of cellulose has been studied using a novel multifrequency ultrasonic reactor. The optimum
experimental conditions resulted in the percent glucose yield of 41.4% after 5 h using Avicel microcrystalline cellulose and cellulase + cellobiase enzymes at 50 °C and pH 5.2. It was found that the effect of ultrasound is mainly physical in nature and increased mass transfer because of increased surface area resulting from cellulose fragmentation in the presence of ultrasound was responsible for the observed increase in the glucose yield. The best cellulose hydrolysis was observed at 611 kHz and 104 W. Up to 70% glucose yield was obtained with prolonged time (40−50 h). The effects of ultrasound and enzyme on the surface and structure of the cellulose were studied using Brunauer−Emmett−Teller (BET) and X-ray diffraction (XRD).
Intensiﬁcation of Enzymatic Hydrolysis of Cellulose Using High-Frequency Ultrasound: An Investigation of the Eﬀects of Process Parameters on Glucose Yield
Yusuf Gbadebo Adewuyi and Vishwanath Ganpat Deshmane
NC A&T University