Potassium Hydroxide-Mediated Pretreatment of Sugarcane Bagasse: High-Efficiency Enzymatic Hydrolysis and Excellent Sugar Recovery.

IF 3.1 4区 生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY
Zhaoyu Wang, Xuewen Chi, Hanwen Feng, Xiaoya Yao, Yanhong Bi, Rongling Yang, Bin Li
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Abstract

Sugarcane bagasse, an important by-product of the sugar industry, is the fibrous residue remaining from sugarcane stalks following the extraction of sugarcane juice. In this study, the efficacy of potassium hydroxide (KOH) pretreatment on sugarcane bagasse under mild conditions is examined, and its effectiveness was assessed through enzymatic saccharification at various solid loadings. After pretreatment with a KOH dosage of 15 wt.%, a solid-liquid ratio of 1:10, and reaction time at 90 °C for 2 h, enzymatic saccharification experiments were performed to observe the change rule for the sugar recovery yield. The results showed that the glucose concentration achieved 47.6 ± 1.1 g/L under optimal conditions. With a specified solid loading of 5% and an enzyme dosage of 20 FPU cellulase/g-substrate, the total sugar yield reached as high as 81.6 ± 1.1%. Additionally, the entire fermentable sugar production process was clean and sustainable, which is crucial for converting lignocelluloses to advanced bioenergy or chemicals.

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来源期刊
Applied Biochemistry and Biotechnology
Applied Biochemistry and Biotechnology 工程技术-生化与分子生物学
CiteScore
5.70
自引率
6.70%
发文量
460
审稿时长
5.3 months
期刊介绍: This journal is devoted to publishing the highest quality innovative papers in the fields of biochemistry and biotechnology. The typical focus of the journal is to report applications of novel scientific and technological breakthroughs, as well as technological subjects that are still in the proof-of-concept stage. Applied Biochemistry and Biotechnology provides a forum for case studies and practical concepts of biotechnology, utilization, including controls, statistical data analysis, problem descriptions unique to a particular application, and bioprocess economic analyses. The journal publishes reviews deemed of interest to readers, as well as book reviews, meeting and symposia notices, and news items relating to biotechnology in both the industrial and academic communities. In addition, Applied Biochemistry and Biotechnology often publishes lists of patents and publications of special interest to readers.
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