Enhanced Bioethanol Production from Corn Stover Using Choline Chloride and Lactic Acid Pretreatment: A Gravimetric analysis Approach

Cosmas S. Mwanakaba, Zachary Siagi, Paul Maina and Mwansa Kaoma
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Cosmas S. Mwanakaba: University of Zambia, Zambia
Zachary Siagi: University of Zambia, Zambia
Paul Maina: University of Zambia, Zambia
Mwansa Kaoma: University of Zambia, Zambia

International Journal of Research and Innovation in Social Science, 2024, vol. 8, issue 3s, 2945-2952

Abstract: The transition to renewable energy sources necessitates the development of efficient and sustainable bioethanol production methods. This study investigates the use of a deep eutectic solvent (DES) blend of choline chloride and lactic acid for the pretreatment of corn stover, a widely available lignocellulosic biomass, to enhance cellulose yield and bioethanol production. The gravimetric method was employed to quantify cellulose yield post-pretreatment, providing a direct assessment of pretreatment efficacy. The study further evaluated the subsequent steps of enzymatic hydrolysis, fermentation, and distillation to determine the overall bioethanol yield. Results demonstrated that the choline chloride and lactic acid blend effectively disrupted the lignocellulosic structure of corn stover, significantly increasing cellulose accessibility and fermentable sugar release. The optimized pretreatment process led to a notable improvement in bioethanol yield, highlighting the potential of this method for commercial bioethanol production. This research contributes to the advancement of biofuel technologies and supports the broader goal of achieving sustainable energy solutions by demonstrating a viable approach to enhancing the efficiency and sustainability of lignocellulosic bioethanol production.

Date: 2024
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