期刊
BIOMOLECULES
卷 12, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/biom12070992
关键词
chitosan; cellulose; gelatin; feruloyl esterase; xylanase; laccase; ferulic acid; enzymatic cross-linking; antioxidant activity; antimicrobial activity
资金
- European Regional Development Fund of the European Union
- Greek national funds through the Operational Program Competitiveness, Entrepreneurship, and Innovation, under the call RESEARCH-CREATE-INNOVATE [T2EDK-01410]
In this study, a series of polymers were enzymatically functionalized with ferulic acid, resulting in improved antioxidant properties and antimicrobial activity. The successful grafting of oxidized ferulic acid onto the polymers was confirmed, and the modified polymers showed potential application in various industries.
A series of polymers, including chitosan (CS), carboxymethylcellulose (CMC) and a chitosan-gelatin (CS-GEL) hybrid polymer, were functionalized with ferulic acid (FA) derived from the enzymatic treatment of arabinoxylan through the synergistic action of two enzymes, namely, xylanase and feruloyl esterase. Subsequently, the ferulic acid served as the substrate for laccase from Agaricus bisporus (AbL) in order to enzymatically functionalize the above-mentioned polymers. The successful grafting of the oxidized ferulic acid products onto the different polymers was confirmed through ultraviolet-visible (UV-Vis) spectroscopy, attenuated total reflectance (ATR) spectroscopy, scanning electron microscopy (SEM) and nuclear magnetic resonance (NMR) spectroscopy. Additionally, an enhancement of the antioxidant properties of the functionalized polymers was observed according to the DDPH and ABTS protocols. Finally, the modified polymers exhibited strong antimicrobial activity against bacterial populations of Escherichia coli BL21DE3 strain, suggesting their potential application in pharmaceutical, cosmeceutical and food industries.
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