Antioxidant activity of water-soluble chitosan derivatives.

By Wenming Xie, P. Xu, Qing Liu. Bioorganic & Medicinal Chemistry Letters, 2001

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Chitosan in Plant Protection (2010, background): “The 50% inhibition concentrations (IC50) values ranged from 246 to 498 mg/mL [105] and most of the activity was attributed to the chitosan contents of hydroxylated amino- and other”
Chitosan nanoparticles preparation and applications (2018, background): “The semicrystalline structure of chitosan and the strong hydrogen bonds ensures that chitosan can not be dissociated from the metal ions (Xie et al. 2001).”
A Review of the Applications of Chitin and Its Derivatives in Agriculture to Modify Plant-Microbial Interactions and Improve Crop Yields (2013, background): “Chitosan has repeatedly been shown to possess antioxidant activity [194–197].”
Active food packaging prepared with chitosan and olive pomace (2018, background): “According to Xie, Xu, and Liu (2001), this can be explained by the ability of chitosan amino groups to interact with free radicals and form stable macromolecular radicals and ammonium groups.”
Chitosan based hydrogels and their applications for drug delivery in wound dressings: A review. (2018, background): “Recently researchers have shown that chitosan derivatives, such as hydroxypropyl chitosan (HPCT) and carboxymethyl chitosan sodium (CMCTS) functionalized by grafting, improved water solubility, antibacterial, and antioxidant properties (Alves & Manoa, 2008; Xie et al., 2002; Xie et al., 2001).”