These polymers are found in nature generally from plant and animal sources. These may be, for example, starch, cellulose, proteins or lignin that has a structural function for the plant or animal.
Predominantly used biobased polymers
Polysaccharides – Polysaccharides are the most important and popular biobased polymers used to make bioplastics mainly constitute starch and cellulose. Lesser known polysaccharides are Chitin found in the shells of insects and animals.
Biobased polymers from polysaccharides – Starch based (Thermoplastic Starch), Cellulose based (Cellophane, Cellulose acetates), PLA.