Development оf Biodegradable Active Materials Based on Polylactide, Nanobacterial Cellulose and Plant Extracts

Introduction . One of the promising areas where food waste can be applied is the production of active food packaging. At scientific forums, there is an active search for the modernization of known biomaterials using the obtained active components from secondary raw materials with high antioxidant capacity. Purpose . Development of an active packaging film made of a biopolymer with the introduction of a plant antioxidant agent in a composite with bacterial nanocellulose, determination of the physico-chemical, antioxidant properties of the resulting biopolymer material. Materials and Methods . The objects of the study were: a plant extract obtained from food waste (husk) of garlic Allium sativum grown in the Samara region and collected from the beginning to the end of September 2023; a plant extract obtained from the cake of marigolds Tagetes erecta grown in the Samara region and collected from the beginning to the end of September 2023; vegetable extract obtained from the cake of barberry berries Bérberis vulgáris ; vegetable extract obtained from Camellia sinensis green tea collected in Fujian Province; plant extract obtained from Sinapis alba mustard seeds; bacterial nanocellulose provided by IPCET SB RAS, Bestfilament PLA granules, IE Berchuk D.Yu., Russia. As a plasticizer, the following were selected: TWIN-80 polysorbate, glycerin. Results. The results of the study show that the introduction of bacterial nanocellulose into the studied objects increases the life of antioxidants. It was found that the vapor permeability of glycerin samples is higher compared to samples with the addition of Twin-80. The swelling values vary depending on the active component introduced. Conclusions. The obtained data can be applied in the production of packaging materials for food processing.