Abstract
Development of cellulosic edible films and coatings enriched with garlic juice. • Novel cellulosic edible film enriched with fresh garlic juice was proposed. • The film was treated with glycerol and citric acid vapor to improve mechanical properties. • The films displayed excellent stretchability and optical clarity. • The films possessed excellent antifungal and antibacterial properties, thus retaining the food fresh. This article presented a novel food packaging film made from cellulose nanofibers (CNFs), raw garlic juice and glycerol. The film was made tough, strong, and barrier-resistant by treating the CNFs with glycerol and citric acid vapor, which performed as a plasticizer and cross-linking agent, respectively. Garlic juice was added as the antibacterial agent. The as-produced films exhibited 529, 47, and 59% higher extensibility, moisture resistance, and water vapor barrier, respectively than the pristine CNF film. The film also showed excellent antifungal and antibacterial resistance.
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