Using Native Plants of the Northeast of Mexico for Developing Active Antimicrobial Food Packaging Films

The development of active food packaging is addressed using polyolefins such as LDPE and PVOH, as well as biopolymers from flour (sorghum and corn) and byproducts of the food industry. Bacteriocins (nisin, natamycin), plant extracts such as oregano and thyme, as well as native plants of the northeast region of Mexico (Larrea tridentata, Schinus molle, Cordia boissieri, Leucophyllum frutescens), and essential oils of oregano and thyme as antimicrobial agents have been studied. The effect exerted by the process of incorporation of the antimicrobial agent (casting, extrusion) on the barrier and mechanical properties of the package as well as the antimicrobial activity of the containers (broad spectrum or selective activity) has been observed and the establishment of methods for their traceability.