School of Pharmacy & School of Biological and Food Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, PR China.
School of Pharmacy & School of Biological and Food Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, PR China; State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, PR China.
Bioresour Technol. 2024 Mar;395:130398. doi: 10.1016/j.biortech.2024.130398. Epub 2024 Jan 28.
The efficient utilization of biomass resources has gained widespread attention in current research. This study focused on the conversion of hemicellulose into xylo-oligosaccharides and furfural, as well as enhanced cellulose saccharification and lignin removal from residual biomass. The solid acid catalyst AT-Sn-MMT was prepared by sulfonation and tin ion loading of montmorillonite K-10. In a mixture of deep eutectic solvent and γ-valerolactone (3:7, v/v), AT-Sn-MMT was used to catalyze Phyllostachys edulis (PE) at 160 °C for 20 min, obtaining a furfural yield of 85.7 % and 1.5 g/L xylo-oligosaccharides. The delignification of pretreated PE was 59.5 %, reaching an accessibility of 221.3 g dye/g material. While the enzymatic saccharification efficiency was increased to 73.1 %. This work drew on the merits of solid acid catalysts and mixed solvent systems, and this constructed pretreatment method could be efficiently applied for co-production of reducing sugars, xylooligosaccharide and furfural, realizing the efficient valorization of PE.
目前的研究中，生物质资源的高效利用受到了广泛关注。本研究聚焦于半纤维素向木二糖和糠醛的转化，以及增强纤维素糖化和木质素从残余生物质中的去除。通过对蒙脱土 K-10 进行磺化和锡离子负载，制备了固体酸催化剂 AT-Sn-MMT。在深共熔溶剂和 γ-戊内酯（3:7，v/v）的混合物中，AT-Sn-MMT 在 160°C 下催化毛竹（PE）20min，糠醛得率为 85.7%，木二糖得率为 1.5g/L。预处理 PE 的脱木质素率为 59.5%，达到 221.3g 染料/g 材料的可及性。同时，酶解糖化效率提高至 73.1%。本工作结合了固体酸催化剂和混合溶剂体系的优点，所构建的预处理方法可高效应用于还原糖、木二糖和糠醛的联产，实现了毛竹的高效增值利用。
