| dc.description.abstract | his research study explores the fabrication of polyvinyl alcohol (PVOH) and corn
starch (CS) with dried mangosteen pericarp extract (DMPE) as a natural antioxidant
and antimicrobial agent, which is an abundant by-product from the food processing
industry via solvent casting method. The effects of DMPE content (0%, 1%, 3%, and
5%) on the antioxidant capacity, antimicrobial activity, optical, physical, mechanical,
and structural morphological characterization, and changes in PVOH-starch molecular
structure of PVOH/CS films were investigated. The results revealed that with the
increasing content of DMPE, prepared films' thickness and water vapor permeability
slightly increased. The antimicrobial activity of M3,M5 films showed strong inhibition
against Staphylococcus aureus ATCC 25923 and Escherichia coli ATCC10536 was
observed . When DMPE power content was added, both tensile strength Elongation at
break (E%) was decreased, which was shown in M5 (238.84 ± 18.38 MPA and 8.24 ±
1.01 %, respectively ). Adding DMPE to PVOH/CS films remarkably increased the
antioxidant properties The highest antioxidant capacity and total phenolic compound
(27.66 ± 0.73 mg TE/g film and 77.57 ± 0.39 mg GAE/g film). Ultimately, this study
thus qualities the benefits of incorporating DMPE into PVA/CS films for potential
application as active packaging films or coatings. These qualities can be useful when
packing food items that oxidize and degrade. | en_US |
