The goal of this project is to optimize the parameters of the production of biodegradable and compostable bags for which the Serbian market is being prepared within the framework of the EU directive adopted by Serbia in 2019, which relates to the reduction of plastic waste. By using materials based on polylactide and starch, which are biodegradable biopolymers, and „green“ plasticizers based on glycerol and citrate esters, instead of proven toxic phthalates, the entire process is placed in an ecological framework. This concept provides bags that can compete with polyethylene bags, and which, on the other hand, after disposal, decompose in the natural environment, through microorganisms’ activity and hydrolytic processes.