Figure 1. Chemical structures of deacetylated chitosan and chitosan derivatives evaluated in this study.
The chitosans and derivatives used had > 90% deacetylation as indicated by the manufacturer. Chitosan oligosaccharide lactate is a low molecular weight oligosaccharide available as the lactic acid salt. Glycol chitosan and methylglycol chitosan have the glycol modification with MGC additionally being N-trimethylated.