| CS | Chitosan |
| GA | Gallic acid |
| CG | Chitosan gallate |
| MW | Molecular weight |
| PDI | Polydispersity Index |
| HMW-CS | High molecular weight chitosan |
| MMW-CS | Middle molecular weight chitosan |
| LMW-CS | Low molecular weight chitosan |
| DS | Degrees of substitution |
| HO• | Hydroxyl radical |
| MTT | 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide |
| DPPH | 2,2-diphenyl-1-picrylhydrazyl |