Sustainable antioxidant and antibacterial activities of zinc ion and caffeic acid-coupled carboxymethyl chitosan
Year: 2025
Type: article
Abstract: revealed that CMCS-Zn-CA demonstrated much lower minimal inhibitory concentrations (MICs) and minimal bactericidal concentrations (MBCs) than CMCS, indicating the excellent inhibition ability of CMCS-Zn-CA on both strains. The time-kill curves and plate count confirmed the antibacterial activity of CMCS-Zn-CA, and SEM results validated its efficacious ability in disrupting the cell barrier. Furthermore, CMCS-Zn-CA demonstrated sustainable antioxidant activity by retaining 93.9% of the CA content and 95.4% of the DPPH radical scavenging rate and prolonged the milk storage time by maintaining a higher pH, lower acidity and lower bacterial count. In conclusion, the CMCS complex displayed sustainable antioxidant and antibacterial activities, suggesting its great potential in practical applications.
Source: RSC Advances
DOI: 10.1039/d5ra02663f
Authors: Yuhui Zhang, Wenna Zhai, Mengdi Xia, Yangzi Rao, Yuxin Yang, Xiao Wang, Jianfeng Zhang
Institution: Ningbo University
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,042
Award: G8854375629
OpenAlex ID: W4411653257