Bioplastic are plastics derived from renewable biomass sources, such as vegetable fats and oils, corn starch, or microbiota. Bioplastic can be made from agricultural by-products and also from used plastic bottles and other containers using microorganisms. Common plastics, such as fossil-fuel plastics are derived from petroleum or natural gas. Production of such plastics tends to require more fossil fuels and to produce more greenhouse gases than the production of biobased polymers (Bioplastic). Some, but not all, Bioplastic are designed to biodegrade. Biodegradable plastics can break down in either anaerobic or aerobic environments, depending on how they are manufactured. Bioplastic can be composed of starches, cellulose, Biopolymer, and a variety of other materials.