Green polymer materials from biomass-based natural resources are of paramount importance in a range of applications, from biomedicine to biocomposites. Indeed, during the last few years there has been increasing demand for green biocomposites obtained from renewable and sustainable biomass-based resources. Plants, grasses, straws, agriculture residues, algae, water plants etc. are among one of the most promising and the most abundant bio-based resources of biopolymers on earth and they are an indispensable component in biocomposites. One of the important features of biomass-based materials is