Enhanced fermentable sugar production in lignocellulosic biorefinery by exploring a novel corn stover and configuring high-solid pretreatment conditions.

Autor: Zabed HM; School of Life Sciences, Guangzhou University, Guangzhou 510006, Guangdong Province, China; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China., Akter S; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China., Dar MA; School of the Environment and Safety Engineering, Biofuels Institute, Jiangsu University, Zhenjiang 212013, Jiangsu, China., Tuly JA; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China., Kumar Aswathi M; College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China., Yun J; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China., Li J; School of Life Sciences, Guangzhou University, Guangzhou 510006, Guangdong Province, China., Qi X; School of Life Sciences, Guangzhou University, Guangzhou 510006, Guangdong Province, China; School of Food & Biological Engineering, Jiangsu University, 301, Xuefu Road, Zhenjiang 212013, Jiangsu, China. Electronic address: qxh@ujs.edu.cn.
Jazyk: angličtina
Zdroj: Bioresource technology [Bioresour Technol] 2023 Oct; Vol. 386, pp. 129498. Date of Electronic Publication: 2023 Jul 16.
DOI: 10.1016/j.biortech.2023.129498
Abstrakt: This study aimed to produce enhanced fermentable sugars from a novel stover system through the bioprocessing of its soluble sugars and insoluble carbohydrates. The pretreatment conditions were optimized for this high sugar-containing stover (HSS) to control inhibitor formation and obtain enhanced fermentable sugar concentrations. The optimum temperature, acid loading, and reaction time for the pretreatment were 155 °C, 0.5%, and 30 min, respectively, providing up to 97.15% sugar yield and 76.51 g/L total sugars at 10% solid-load. Sugar concentration further increased to 126.9 g/L at 20% solid-load, generating 3.89 g/L acetate, 0.92 g/L 5-hydroxymethyl furfural, 0.82 g/L furfural, and 3.75 g/L total phenolics as inhibitors. To determine the effects of soluble sugars in HSS on fermentable sugar yield and inhibitor formation, sugar-removed HSS was further studied under the optimum conditions. Although prior removal of sugars exhibited a reduction in inhibitor generation, it also decreased total fermentable sugar production to 115.45 g/L.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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