Edible film production using <i>Aronia melanocarpa</i> for smart food packaging

Abstract Although smart packaging systems protect food, they also provide information about the shelf life of content. This is provided by formation severe shifts in color as a result reaction gases released decomposition colorant used packaging. The inks or films may exhibit this feature. Because both ink and film materials come into direct contact with food product packaging, it more suitable for intended use to be produced from edible natural resources. In study, we aimed investigate production their active using source starch another bio black chokeberry (Aronia melanocarpa) fruit order produce coloring matter was extracted Aronia melanocarpa ethyl alcohol. monomeric anthocyanin total phenol contents were determined pH differential method. Colorimetric sensitive changes biopolymer adding different amounts obtained aronia extract. chemical structures ATR-FTIR, properties spectrophotometer, angles goniometer. addition, swelling ability calculated based on pH. disk diffusion method applied against gram-positive gram-negative bacteria, antibacterial determined. prepared approximately half low blank film. maintained stability at all levels, including high acids bases. While had pink-red acidic pH, turned dark blue basic values. shows that depending nitrogen output spoiled meat can When examined, (F0) did not have any properties, however amount increased, an increase 17–22 mm (F1 F4) bacteria 4–9.9 F4), respectively, observed bacteria. fact inhibitory adds extra feature material, protects degradation.