Preparation and characterization of chitosan oligosaccharide derivatives containing cinnamyl moieties with enhanced antibacterial activities
LWT, ISSN: 0023-6438, Vol: 147, Page: 111663
2021
- 34Citations
- 22Captures
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Article Description
The novel chitosan oligosaccharide derivatives modified with cinnamyl onto the NH 2 position were synthesized through a one-step reaction and their in vitro antibacterial activities were ascertained. The structural characterization and properties of derivatives were verified by UV–vis, FT-IR, 1 H, 13 C NMR, TGA, XRD, and elemental analysis. The degrees of substitution (DS) of derivatives were from 0.255 to 0.366 with yields up to 82%. The in vitro antibacterial activities for the novel chitosan oligosaccharide derivatives against Escherichia coli ( E. coli ) and Staphylococcus aureus ( S. aureus ) were greatly improved compared to COS, sodium benzoate, and potassium sorbate. Moreover, their antibacterial activities were DS-dependent and more sensitive to S. aureus than E. coli. This study demonstrated that the new derivatives were expected to be a promising potential antimicrobial agent in the food industry.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0023643821008161; http://dx.doi.org/10.1016/j.lwt.2021.111663; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85105737236&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0023643821008161; https://dx.doi.org/10.1016/j.lwt.2021.111663
Elsevier BV
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