Biopolymers, such as chitosan and polylactic acid (PLA), are being thought of more and more as alternatives to synthetic polymers because they are better at being renewable and biodegradable. Reinforcement techniques like grafting and mixing are being used to further enhance their properties. One of the best things about PLA is that it is easy to get, biodegradable, flexible, and can be strengthened with different natural fibers and fillers. Bioplastics are being explored as viable alternatives to traditional synthetic plastics, in light of international agreements concerning plastics.