“…These functional groups are also responsible for properties such as high hydrophilicity, reactivity, and structural flexibility that make chitosan soluble in nearneutral acid solution [17]. The soluble adsorptive properties of chitosan enable its use for removal of pesticide and dyes from water, for adsorption of proteins, as flocculant agent, and even as a catalyst support for biodiesel production [18][19][20][21][22][23][24]. Besides being an abundant renewable resource, chitosan stands out due to some unique properties such as exceptional biocompatibility, biodegradability, non-toxicity and the easiness of production of chemically modified forms [14,25,26].…”