Journal
FOOD CHEMISTRY
Volume 437, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2023.137811
Keywords
PVA; Pork; Nitrite; Films
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This study developed polyvinyl alcohol films incorporated with sodium nitrite and applied them to refrigerated pork. The presence of nitrite did not alter the physical properties of the films and reduced the oxidation level of the pork.
In this study, an active films of polyvinyl alcohol (PVA) films, incorporated with sodium nitrite were developed, characterized and applied to pork stored for six days at 25 degrees C. As for the film characterization by FTIR, no chemical interactions were observed between nitrite and PVA under the studied conditions. The physical properties of the PVA films were not altered by the presence of nitrite. PVA films incorporated with 100 ppm nitrite reduced TBARS values of refrigerated pork from 0.63 mu mol MDA/g (control) to 0.49 mu mol MDA/g (PVA 01). Color changes were observed in all meat samples packaged with the film. It is concluded that the presence of nitrite does not interfere in the physical properties of the PVA films and that the developed films have an active potential for application in pork in natura.
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