Corn-based film foils food-poisoning bugs

2019-03-02 05:01:00

Hot dogs, deli meats and other processed meats can harbour Listeria monocytogenes, which causes 2500 cases of food poisoning and 500 deaths in the US each year. But a novel packaging film made from renewable materials such as corn residues could stamp out Listeria and other food-borne bugs. Tony Jin at the US Department of Agriculture in Wyndmoor, Pennsylvania, created a biodegradable polylactic acid (PLA) film containing a natural antimicrobial agent called nisin. When Jin spiked orange juice and egg whites with Listeria, E. coli O157:H7 and Salmonella enteriditis, and placed them on the film,