When it comes to bioplastics, there are two main forms on the market today: polylactic acids (PLA) and polyhydroxyalkanoates (PHA). PLA plastics are made from plants like corn and sugarcane by extracting the sugars and refining them. PHA plastics are made from the digestion process of microbes. PLA plastics are most commonly used for food packaging, while PHA plastics are most commonly used for medical devices. Now there are a variety of other bioplastics out there, but these are the most commonly available and ...