Functionalization of Polyhydroxyalkanoates (PHA)-Based Bioplastic with Phloretin for Active Food Packaging: Characterization of Its Mechanical, Antioxidant, and Antimicrobial Activities

The formulation of eco-friendly biodegradable packaging has received great attention during the last decades as an alternative to traditional widespread petroleum-based food packaging. With this aim, we designed and tested the properties of polyhydroxyalkanoates (PHA)-based bioplastics functionalize...

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Bibliographic Details
Published in:International journal of molecular sciences 2023-07, Vol.24 (14), p.11628
Main Authors: Mirpoor, Seyedeh Fatemeh, Patanè, Giuseppe Tancredi, Corrado, Iolanda, Giosafatto, C Valeria L, Ginestra, Giovanna, Nostro, Antonia, Foti, Antonino, Gucciardi, Pietro G, Mandalari, Giuseppina, Barreca, Davide, Gervasi, Teresa, Pezzella, Cinzia
Format: Article
Language:English
Subjects:
Anti-Infective Agents - pharmacology
Antimicrobial agents
Antioxidants
Antioxidants - pharmacology
Bacteria
Bioplastics
Biopolymers
Contact angle
Food
Food contamination & poisoning
Food packaging
Food Packaging - methods
Listeria
Mechanical properties
Metabolism
Microorganisms
Moisture content
Packaging
Phenols
Phloretin - pharmacology
Polyhydroxyalkanoates
Polymer blends
Polyphenols
Raman spectroscopy
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Summary:The formulation of eco-friendly biodegradable packaging has received great attention during the last decades as an alternative to traditional widespread petroleum-based food packaging. With this aim, we designed and tested the properties of polyhydroxyalkanoates (PHA)-based bioplastics functionalized with phloretin as far as antioxidant, antimicrobial, and morpho-mechanic features are concerned. Mechanical and hydrophilicity features investigations revealed a mild influence of phloretin on the novel materials as a function of the concentration utilized (5, 7.5, 10, and 20 mg) with variation in FTIR e RAMAN spectra as well as in mechanical properties. Functionalization of PHA-based polymers resulted in the acquisition of the antioxidant activity (in a dose-dependent manner) tested by DPPH, TEAC, FRAR, and chelating assays, and in a decrease in the growth of food-borne pathogens ( ATCC 13932). Finally, apple samples were packed in the functionalized PHA films for 24, 48, and 72 h, observing remarkable effects on the stabilization of apple samples. The results open the possibility to utilize phloretin as a functionalizing agent for bioplastic formulation, especially in relation to food packaging.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms241411628