皮革科学与工程 ›› 2024, Vol. 34 ›› Issue (2): 1-6.doi: 10.19677/j.issn.1004-7964.2024.02.001

• 试验研究 •    下一篇

漆酶-原儿茶醛交联鱼皮胶原蛋白水凝胶的研究

杨长凯1,2, 李国英1,2,*   

  1. 1.四川大学皮革化学与工程教育部重点实验室,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
  • 收稿日期:2023-09-11 修回日期:2023-11-20 接受日期:2023-11-22 出版日期:2024-04-01 上线日期:2024-03-07
  • 通讯作者: *李国英(1967-),女,教授,博士生导师,研究方向为胶原化学及其生物学利用。E-mail:liguoyings@163.com。
  • 作者简介:杨长凯(1993-),男,博士研究生,研究方向为生物质化学与工程。E-mail:1120417956@qq.com。
  • 基金资助:
    国家自然科学基金资助项目(22078206)

Study on the Collagen Hydrogel of Fish Skin via Laccase- Protocatechuic Aldehyde Cross-linking

YANG Changkai1,2, LI Guoying1,2,*   

  1. 1. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China;
    2. National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
  • Received:2023-09-11 Revised:2023-11-20 Accepted:2023-11-22 Published:2024-04-01 Online:2024-03-07

摘要: 与哺乳动物蛋白相比,鱼皮胶原蛋白未受到克雅氏病和牛海绵状脑病流行的限制,具有较大的应用潜力,然而较差的力学性能和耐降解性质限制了鱼皮胶原的应用。论文探究了漆酶(LAC)和原儿茶醛(PAL)交联制备胶原蛋白水凝胶的交联机理,凝胶微观结构,力学性能和耐降解性质。结果表明,漆酶能够交联胶原成胶。同时,原儿茶醛的引入增强了漆酶交联胶原的作用,提升了胶原蛋白水凝胶的结构稳定性和耐降解性质。LAC-PAL交联胶原是一种构建胶原蛋白水凝胶的有效策略。

关键词: 水凝胶, 鱼皮, 胶原, 漆酶, 原儿茶醛

Abstract: Fish skin collagen has greater application potential than mammalian proteins because it is not limited by the prevalence of Creutzfeldt-Jakob disease and bovine spongiform encephalopathy. However, it is restricted by its poor mechanical properties and poor resistance to degradation. This work investigated the cross-linking mechanism, gel microstructure, mechanical properties and degradation resistance of collagen hydrogels prepared by the cross-linking of laccase (LAC) with protocatechuic aldehyde (PAL). Results showed that LAC could cross-link collagen to form a hydrogel. Meanwhile, the introduction of PAL enhanced the role of LAC in cross-linking collagen and improved the structural stability and degradation resistance of the resulting collagen hydrogels. The collagen cross-linked via LAC-PAL is an effective strategy for constructing collagen hydrogels.

Key words: hydrogel, fish skin, collagen, laccase, protocatechuic aldehyde

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