Bioplastic
Bioplastics are plastic materials that are made from biomass sources. These include vegetable fats and oils, corn starch, straw and food waste. Some bioplastics are made directly from natural biopolymers such as polysaccharides (e.g., starch and cellulose) and proteins (e.g. gluten, and gelatin). Others are chemically synthesised from sugar derivatives and lipids. In contrast, common plastics, also called petro-based polymers, are made from petroleum or natural gas.