
Bio plasticizers are polymer additives meant for improving flexibility, softness, workability, and volatility of the plasticized materials. These are based on renewable resources and produced from vegetable raw materials such as soybean, palm, castor oil, citrates, stearic acid, and starch. They may be internal or external based on the kind of modifications done to the materials to which they are added. Bio plasticizers are available as different types in market among which epoxides and castor oil based types (sebacates & glycerol esters) are highly adopted. They can replace phthalates in toys, food packaging, medical devices, and personal care products as phthalates are banned by different government in these commodities.