Apple Pectin Based Film with Apis Mellifera Honey and /or Propolis Extract as Sources of Active Compounds

Abstract

This study aimed to develop an active pectin film, using honey and/or propolis ethanolic extract (PEE) as sources of active compounds (polyphenols and antimicrobials) and to analyze their influence on the physicochemical, optical, and mechanical properties of these films. During experimental tests, it was found that the formulation that presented the best characteristics was the film with 60 g of honey/100 g of pectin and 5 g of PEE/100 g of pectin. This specific film formulation provides an effective alternative to obtain an active material with good barrier and mechanical properties. It showed less permeability to water vapor, minor transparency and difference in color, although more rigid. The film had a higher total phenols content, and antiradical and antimicrobial properties against Listeria innocua and Staphylococcus aureus. Overall, the findings suggest that these films would be effective carriers of bioactive compounds. These compounds could be consumed by coating fresh or dried fruits with active coatings.