Cello-oligosaccharides and fermentable sugars production:使用原生离子液体混合物进行生物质预处理的脱乙酰化-木质素化综合工艺

IF 3.5 2区 农林科学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
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引用次数: 0

摘要

甘蔗秸秆是一种残留物,可用于生物精炼厂获得生物产品。本研究通过优化酶水解过程的操作条件,利用预处理生物质生产高附加值产品和生物能源生物大分子。在使用离子液体混合物(110 °C、35 % w-1 含水量和 15 % w-1 [Mea][Hex])进行预处理条件优化后,反应 6 小时可获得 102.2 mg gbiomass-1 的纤维寡糖(COS)释放量,相当于 16.6 mgCOS gbiomass-1 h-1 的生产率和 3.3 mgCOS FPU-1 h-1 的比生产率。这项研究还开发了一种一步法工艺,整合了木质纤维素生物质预处理中的两个重要操作,即脱乙酰化和木质素去除。所述方法可用于在优化的预处理条件下使用原生离子液体混合物生产可发酵糖(纤维素消化率为 88%)和低聚糖,从而提高生产率、成本和可持续性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cello-oligosaccharides and fermentable sugars production: An integrated deacetylation-delignification process to biomass pretreatment by using a mixture of protic ionic liquids

Sugarcane straw is a residual which can be used to obtain bioproducts in a biorefinery. In this study, the pretreated biomass was used to produce both high added value products and bioenergy biomolecules from enzymatic hydrolysis by optimizing the operating conditions of the process. Cello-oligosaccharides (COS) release of 102.2 mg gbiomass−1 was obtained from 6 h of reaction, corresponding to a productivity of 16.6 mgCOS gbiomass−1 h−1 and a specific productivity of 3.3 mgCOS FPU−1 h−1 after pretreatment conditions optimization using mixture of ionic liquids (110 °C, 35 % w w−1 water content, and 15 % w w−1 [Mea][Hex]). This study also developed a one-step process integrating two important operations involved in the pretreatment of lignocellulosic biomasses named deacetylation and lignin removal. The method described can be used for fermentable sugars (cellulose digestibility of 88 %) and oligosaccharides production under optimized pretreatment conditions using a mixture of protic ionic liquids with gains in productivity, cost and sustainability.

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来源期刊
Food and Bioproducts Processing
Food and Bioproducts Processing 工程技术-工程:化工
CiteScore
9.70
自引率
4.30%
发文量
115
审稿时长
24 days
期刊介绍: Official Journal of the European Federation of Chemical Engineering: Part C FBP aims to be the principal international journal for publication of high quality, original papers in the branches of engineering and science dedicated to the safe processing of biological products. It is the only journal to exploit the synergy between biotechnology, bioprocessing and food engineering. Papers showing how research results can be used in engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in equipment or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of food and bioproducts processing. The journal has a strong emphasis on the interface between engineering and food or bioproducts. Papers that are not likely to be published are those: • Primarily concerned with food formulation • That use experimental design techniques to obtain response surfaces but gain little insight from them • That are empirical and ignore established mechanistic models, e.g., empirical drying curves • That are primarily concerned about sensory evaluation and colour • Concern the extraction, encapsulation and/or antioxidant activity of a specific biological material without providing insight that could be applied to a similar but different material, • Containing only chemical analyses of biological materials.
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