Preparation and characterization of bifunctional edible gellan-polylysine fiber.

Ying Zhang, Jianrong Wu, Kejing Yu, Jinhua Hu, Xiaobei Zhan

International journal of biological macromolecules 2022 Apr 15

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A gellan-polylysine (GPL) fiber was prepared by wet spinning molding with gellan solution containing glucose, soybean peptide, fish collagen peptide as spinning liquid, and ε-poly-l-lysine as fixative liquid. Results showed that the material addition order affects the spinning and an acceptable material addition order was as follows: soybean peptides →glucose → fish collagen peptides. The mechanical strength of the GPL fiber decreased with the collagen peptide titer and the fiber strength can reach 0.99 cN/dtex. In addition, the GPL fiber showed comparable water absorption capacity. The GPL fiber demonstrated good antibacterial properties against Escherichia coli and Staphylococcus aureus. The GPL fiber also had no cytotoxicity on mouse embryo fibroblast L-929 cells and could effectively promote wound healing for rats. As a result, the bifunctional edible GPL fiber is potentially used as a military and rescue emergency equipment. Copyright © 2022 Elsevier B.V. All rights reserved.

Citation

Ying Zhang, Jianrong Wu, Kejing Yu, Jinhua Hu, Xiaobei Zhan. Preparation and characterization of bifunctional edible gellan-polylysine fiber. International journal of biological macromolecules. 2022 Apr 15;204:293-299