Effects of Nano-Bentonite Polypropylene Nanocomposite Films and Modified Atmosphere Packaging on the Shelf Life of Fresh-Cut Iceberg Lettuce

In this study, the shelf life of fresh-cut iceberg lettuce (Lactuca sativa L.) was evaluated. Lettuce samples were washed with disinfectant agents and sodium hypochlorite then soaked in an ascorbic acid solution. Next, stored packaging films containing three levels (1% 3% 0% as a control film) nano-bentonite particles (NBPs) filler modified atmosphere for 12 days at 4 °C. Various physicochemical parameters such color, texture, pH, titratable acidity, dehydration, moisture, dry matter, chlorophyll content, microbial quality, sensory properties investigated. Results indicated that nano-packaging had significant ability to maintain fifth nano-composite ninth (3% storage when compared films. The greatest growths molds yeasts observed films, which demonstrates effectiveness application bentonite nanoparticle fillers.