Microwave-enabled production of glucose from Ofada-rice husk by pretreatment with alkaline solution and acid-catalyzed hydrolysis (kinetic and optimization study)

Name: Uzosike, Anthony Okechukwu

Organization : Federal College of Education (Tech) Akoka. Department of Integrated Science Education

Email : uzosikeokechukwu@gmail.com

Name: Akande, James Asamu

Organization : Caleb University. Department of Chemistry and Biochemistry

LCSH: Biomass energy

LCSH: Rice hulls -- Utilization

LCSH: Lignocellulose

LCSH: Glucose

LCSH: Hydrolysis

Abstract: The world is presently grappling with an energy crisis, as energy demand far outweighs supply. Hence, the need for an energy mix. Biomass from agricultural waste such as rice husk could serve as a veritable source of biofuels due to the presence of lignocellulosic materials it contains. This study examined the possibility of converting rice husk substrate into glucose using microwave-enabled alkali pretreatment and acid hydrolysis. The kinetic data were collected using Saeman’s model, while the experimental conditions for the hydrolysis of cellulose to glucose were optimized by response surface methodology using Box-Behnken experimental design. As the cellulose dosage increased from 10 g/L to 50 g/L, and the ZnCl₂ increased from 2 mg/L to 11 mg/L, the glucose yield increased from 94.19 mg/g to 98.90 mg/g. A comparison of the R-square values of all the kinetic models revealed that the conversion of cellulose follows a first-order reaction. The maximum glucose yield of 96.55% glucose was attained with 4.50 mg/L ZnCl₂.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2025

Modified: 2025-10-22

Issued: 2025-10-22

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BibliograpyCitation : In The Chemical Society of Thailand under the Patronage of Professor Dr. Her Royal Highness Princess Chulabhorn Krom Phra Srisavangavadhana and Suranaree University of Technology. Institute of Science. School of Chemistry. Pure and Applied Chemistry International Conference 2025 (PACCON 2025) (pp.204-210). Bangkok : The Chemical Society of Thailand under the Patronage of Professor Dr. Her Royal Highness Princess Chulabhorn Krom Phra Srisavangavadhana in association with the School of Chemistry, Institute of Science, Suranaree University of Technology, 2025

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