皮革科学与工程 ›› 2023, Vol. 33 ›› Issue (4): 28-35.doi: 10.19677/j.issn.1004-7964.2023.04.006

• 综述 • 上一篇    下一篇

木质纤维素制备寡聚糖及其在绿色制革中的应用

高咪1,2, 丁伟3,*, 蒋智成1,2,*, 石碧1,2   

  1. 1.四川大学轻工科学与工程学院,四川 成都 610065;
    2.四川大学制革清洁技术国家工程实验室,四川 成都 610065;
    3.中国皮革制鞋研究院有限公司,北京 100015
  • 收稿日期:2022-10-26 出版日期:2023-08-01 上线日期:2023-07-21
  • 通讯作者: *丁伟(1987-),男,高级工程师,主要从事生物质基低碳功能材料的研究与应用。E-mail:dingwei1368@outlook.com;
  • 作者简介:高咪(1998-),女,硕士生,主要从事生物质转化制备高附加值化学品的研究。E-mail:1277365146@qq.com。
  • 基金资助:
    国家自然科学基金(22078211)

Preparation of Oligosaccharides from Lignocellulose and their Application in Leather Tanning

GAO Mi1,2, DING Wei3,*, JIANG Zhicheng1,2,*, SHI Bi1,2   

  1. 1. College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China;
    2. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China;
    3. China Leather and Footwear Research Institute Co., Ltd., Beijing 100015, China
  • Received:2022-10-26 Online:2023-08-01 Published:2023-07-21

摘要: 木质纤维素生物质中含有丰富的多糖组分,在较温和的反应条件下将其转化为寡聚糖,不仅可保留其天然结构,将其直接应用于工业生产,还可降低断裂复杂化学键所需能耗,助力生物炼制产业的可持续发展。文章总结了无机酸、有机酸和无机盐等均相酸性催化剂促进木质纤维素降解的过程,对几类酸性催化剂的作用方式和效果进行了对比,并概括了不同催化作用下制得寡聚糖的纯度、相对分子质量分布等特征。寡聚糖具有分子尺寸适中、含氧官能团丰富等结构特性,通过改性可作为醛鞣剂和非铬金属-寡聚糖配合物鞣剂用于清洁制革。文章进一步总结了通过调控改性过程和改性程度提高生物质基鞣剂性能的方法,为推进此类鞣剂在高性能无铬皮革生产中的应用提供参考。

关键词: 寡聚糖, 木质纤维素, 均相催化, 皮革鞣制

Abstract: Lignocellulose contains abundant polysaccharides. The depolymerization of lignocellulose into oligosaccharides under relatively mild conditions not only retains their natural structures, but also reduces energy inputs during the cleavage of chemical bonds, which is promising for the development of the sustainable biorefinery industry. Here, we summarized the catalytic depolymerization of the polysaccharides by using acidic catalysts, mainly including inorganic acids, organic acids and inorganic salts. The effects of catalysts and the products' structural features were compared. Owing to their appropriate molecular size and abundant oxygen-containing groups, the oligosaccharides could be modified and then used as aldehyde tanning agents and metal-oligosaccharides complex tanning agents. We summarized the modification methods and modification degrees for improving the tanning performance, providing the application potentials of these biomass-derived tanning agents in high-performance chrome-free leather production.

Key words: oligosaccharides, lignocellulose, homogeneous catalysis, leather tanning

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