Poly(lactic acid)/Menadione Based Composite for Active Food Packaging Application

In the current work, poly(lactic acid) (PLA) based composite films are developed via incorporation of “menadione” (MD) as additive agent and solution casting approach is followed for fabrication of composite films. The impact of MD on the physico-chemical properties of PLA and its active food packag...

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Bibliographic Details
Published in:Journal of polymers and the environment 2023-05, Vol.31 (5), p.1938-1954
Main Authors: Lawal, Usman, Robert, Vijay, Loganathan, Sravanthi, Valapa, Ravi Babu
Format: Article
Language:English
Subjects:
Chemical properties
Chemistry
Chemistry and Materials Science
E coli
Elongation
Environmental Chemistry
Environmental Engineering/Biotechnology
Fabrication
Food
Food composition
Food packaging
Industrial Chemistry/Chemical Engineering
Ions
Materials Science
Menadione
Original Paper
Oxygen
Permeability
Physicochemical properties
Polylactic acid
Polymer Sciences
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Summary:In the current work, poly(lactic acid) (PLA) based composite films are developed via incorporation of “menadione” (MD) as additive agent and solution casting approach is followed for fabrication of composite films. The impact of MD on the physico-chemical properties of PLA and its active food packaging characteristics is envisaged herein. The incorporation of MD in the PLA matrix helps in favour of four-fold enhancement in elongation property for the composite films. Interestingly, the PLA/MD composite films demonstrate complete UV-barrier property and presents an UV protection factor (UPF) value > 50. The oxygen permeability analysis reveals that the MD could help in reducing the oxygen transmission rate by ~ 30% for PLA composites than PLA. The PLA/MD composite films act as potential 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenger by presenting ~ 97% antioxidant activity. The increase in wt% loadings of MD in the PLA matrix show improved antibacterial properties against Gram positive Staphylococcus aureus ( S. aureus) and Gram negative Escherichia coli ( E. coli) . The PLA/MD composite films registered values within the EU limit of 10 mg/dm 2 for dry food migration. Thus, the PLA/MD composite formulation envisaged in this work presents promising characteristics pre-requisite for both watery and dry active food packaging application. Graphical Abstract
ISSN:1566-2543
1572-8919
DOI:10.1007/s10924-022-02734-5