Preparation and evaluation of intelligent and edible packaging of food enriched with anthocyanins in vegetables based on biodegradable alginate polymer and chitosan nanoparticles

The preparation and evaluation of smart food packaging and food enriched with anthocyanin from various red vegetables, based on biodegradable alginate polymer and chitosan nanoparticles, is an important issue in the food packaging industry. Anthocyanins are natural phenolic compounds with antioxidant, antimicrobial, and anti-inflammatory properties that can be used as additives to improve the quality and shelf life of food products. Alginate, as a biodegradable polymer, and chitosan, as a nanoscale substance with antibacterial and antioxidant properties, are suitable base materials for the development of smart food packaging and edibles enriched with anthocyanin.[۱]Anthocyanins, as naturally occurring pigments, can act as smart pH sensors in packaging enriched with these compounds. These phenolic dyes have the ability to change color in response to environmental pH fluctuations. In acidic environments, anthocyanins exhibit a red color on average, while in alkaline conditions, they take on a blue-violet hue. This pH-responsive behavior can be used to design smart packaging capable of indicating changes in the internal pH of the package.For example, if the internal pH of the package increases due to bacterial spoilage, the color change of anthocyanins can serve as a warning signal, informing the consumer about the quality and safety of the product. This "smart" packaging feature makes it extremely valuable for food industry applications.Overall, the combination of anthocyanins and their pH-sensitive properties, along with the edible nature of this type of packaging and its enhanced beneficial properties, such as antioxidant capabilities, can provide a multifunctional system. This system can actively monitor and respond to the packaging environment, ultimately helping to maintain food quality and safety.[۲]

کلیدواژه ها:

Anthocyanin ، alginate ، food packaging