Biodegradable films were produced from blends contained a high amount of thermoplastic starch (TPS)
and poly(lactic acid) (PLA) plasticized with different adipate or citrate esters. It was not possible to obtain
pellets for the production of films using only glycerol as a plasticizer. The plasticization of the PLA with the
esters and mixture stages added through extrusion was critical to achieve a blend capable of producing
films by blow extrusion. Adipate esters were the most effective plasticizers because they interacted best
with the PLA and yielded films with appropriate mechanical properties.