Abstract
Nano bacterial cellulose (NBC) being a biopolymer has unique physical and chemical properties with high biocompatibility. It is pure cellulose with nanometer size, produced by certain group of bacteria. Its properties can be further improved by combining with poly(vinyl alcohol) (PVA), which is a fascinating polymer soluble in water and biocompatible. Composite films of PVA and NBC were prepared by solution casting method. Composite films of PVA-NBC (0,1,2,3,4,5 %) were tested for major packaging properties like water vapor transmission rate, swelling measurement, film solubility and moisture retention capacity. Among all concentration films, film with 5 % NBC- PVA showed better results for all the tests. Films were also checked for antimicrobial properties against spoilage-causing bacteria and fungi. Further, the films were applied to study the shelf life in the Mitli Banana (Musa sp.) followed by Organoleptic evaluation during storage. Results showed that the banana packed with 5 % NBC- PVA film has retained maximum acceptable characters than other packages.
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