摘要：Development of monolayer films based on polymeric nanocomposites used in food packaging presumes incorporation and/or controlled release of some bioactive components from composite biomaterials, having direct impact on the consumer's health. Variants for obtaining bioactive nanocomposites by incorporating an organophilised silicate modified with starch, hydrolyzed collagen, fatty acid C16-18and quebracho (a natural poliphenol) were selected during the study. Monolayer films obtained of LDPE/silicate modified with bioactive properties nanocomposites, nanostructured, were characterized in terms of morphostructural properties (XRD analysis, TGA analysis and DSC analysis), mechanical (tensile strength, elongation at break). Preliminary tests of interaction of these materials with food, in laboratory conditions, were conducted. Testing methodology used by the laboratory included: overall migration analysis of components from food packaging, specific migration analysis of bioactive components (by UV-VIS spectrophotometry), organoleptic examination, gases permeability analysis (O2, N2, CO2), water vapor permeability analysis and heavy metal analysis (specific migration and content) by AAS.
