沸石型咪唑骨架的最佳孔隙度对生物质水解液中糠醛的经济高效去除

IF 3.7 3区生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Biochemical Engineering Journal Pub Date : 2025-07-09 DOI:10.1016/j.bej.2025.109858

Kanghong Wang , Chaozhong Xu , Wei Xiong, Shanshan Tong, Jia Ouyang, Xiaoli Gu

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引用次数: 0

摘要

有效去除发酵抑制剂，特别是糠醛等呋喃醛对于提高木质纤维素生物质加工中的微生物发酵效率至关重要。本研究通过调节Zn2 + /2-甲基咪唑的摩尔比（1:4-1:15），合成了不同摩尔比的咪唑酸分子筛骨架-8，并对其结构性能和吸附性能进行了系统评价。结果表明，孔结构对吸附性能的影响至关重要，当Zn2+/2-甲基咪唑比为1:8时，孔结构最优。优化后的沸石咪唑框架-8在不同的操作条件下对糠醛具有快速、选择性和高效的吸附，从而防止了抑制剂的形成影响发酵，同时最大限度地减少了糖的损失。该研究为生物质转化吸附剂的开发提供了可推广的设计原则。这项工作为生物质水解解毒提供了一种可扩展的解决方案，与传统的树脂基方法相比，由于材料的可重复使用和高吸附能力，具有潜在的成本优势。

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Optimal porosity in zeolitic imidazole framework for cost-effective furfural removal in biomass hydrolysates

Efficient removal of fermentation inhibitors, particularly furan aldehydes like furfural is crucial for enhancing microbial fermentation efficiency in lignocellulosic biomass processing. In this study, zeolitic imidazolate framework-8 with different molar ratios were synthesized by regulating the Zn^2 + /2-methylimidazole molar ratio (from 1:4–1:15), and their structural properties and adsorption performance were systematically evaluated. The results showed that the pore structure was crucial to the adsorption performance, and the pore structure was optimal when the Zn²⁺/2-methylimidazole ratio was 1:8. The optimized zeolitic imidazole framework-8 showed rapid, selective and efficient adsorption of furfural under different operating conditions, thereby preventing the formation of inhibitors from affecting fermentation while minimizing sugar loss. This study provides a generalizable design principle for the development of adsorbents in biomass conversion. This work provides a scalable solution for biomass hydrolysate detoxification, with potential cost advantages due to the material’s reusability and high adsorption capacity compared to conventional resin-based methods.

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来源期刊

Biochemical Engineering Journal 工程技术-工程：化工

CiteScore

7.10

自引率

5.10%

发文量

380

审稿时长

34 days

期刊介绍： The Biochemical Engineering Journal aims to promote progress in the crucial chemical engineering aspects of the development of biological processes associated with everything from raw materials preparation to product recovery relevant to industries as diverse as medical/healthcare, industrial biotechnology, and environmental biotechnology. The Journal welcomes full length original research papers, short communications, and review papers* in the following research fields: Biocatalysis (enzyme or microbial) and biotransformations, including immobilized biocatalyst preparation and kinetics Biosensors and Biodevices including biofabrication and novel fuel cell development Bioseparations including scale-up and protein refolding/renaturation Environmental Bioengineering including bioconversion, bioremediation, and microbial fuel cells Bioreactor Systems including characterization, optimization and scale-up Bioresources and Biorefinery Engineering including biomass conversion, biofuels, bioenergy, and optimization Industrial Biotechnology including specialty chemicals, platform chemicals and neutraceuticals Biomaterials and Tissue Engineering including bioartificial organs, cell encapsulation, and controlled release Cell Culture Engineering (plant, animal or insect cells) including viral vectors, monoclonal antibodies, recombinant proteins, vaccines, and secondary metabolites Cell Therapies and Stem Cells including pluripotent, mesenchymal and hematopoietic stem cells; immunotherapies; tissue-specific differentiation; and cryopreservation Metabolic Engineering, Systems and Synthetic Biology including OMICS, bioinformatics, in silico biology, and metabolic flux analysis Protein Engineering including enzyme engineering and directed evolution.