Plastics are used in almost every manufacturing industry ranging from automobile to medicine and are a vital part of daily life as these are among the cheapest polymers available for household and industrial use. Plastics are very much advantageous because as synthetic polymers their structure can be chemically manipulated to have a wide range of strengths and shapes. Bio-plastics (PHA) are considered good substitutes for synthetic plastics because of their similar physical and chemical properties. Main advantage of bioplastics is that they are of biological origin and can get degraded completely to CO2 and H2O under natural environment by the enzymatic activities of microorganisms. ukryj opis