Selective antimicrobial food packaging of composite poly(lactic acid) cobalt-citrate films

Antibacterial photodynamic therapy (APDT) has received considerable attention owing to its superiority. ZIF-8 was used to address the poor stability of the photosensitizer Rose Bengal (RB) encapsulation to synthesize RB@ZIF-8 NPs, which were doped into a composite film with poly (ɛcaprolactone) (PCL) and polyvinyl alcohol-quaternary ammonium chitosan (PVA-QCS) as substrates to form composite films (PQZ). The composite films exhibited excellent photodynamic sterilization and good resistance to bacterial adhesion. The tensile strength of the film increased to 43.4 MPa, which was approximately 1.8 times that of the PCL film. With the addition of SiO 2 and RB@ZIF-8 NPs, the film exhibited water repellency and UV-blocking properties. RAW264.7 cells were selected using the MTT method to confirm that the composite films had excellent biocompatibility and had no significant inhibitory effect on cell growth and reproduction. PQZ multifunctional composite films show potential as novel APDT antimicrobial materials for food packaging.

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“…Additional references cited within the Supporting Information. [27][28][29][30][31][32][33][34][35][36]…”

Section: Supporting Informationmentioning

confidence: 99%

UV‐Blocking and Light‐Responsive Poly (ϵ‐Caprolactone)/ZIF‐8 Multifunctional Composite Films for Efficient Antibacterial Activities

Wang

Feng

Tang

et al. 2023

Chemistry A European J

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Progress in release‐activated food packaging films

Chen

et al. 2023

Packag Technol Sci

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To solve the problems caused by direct incorporation of preservation agents (PAs) such as antimicrobials and antioxidants into food, development and application of active packaging (AP) are being strongly promoted. According to the way of PAs applied, AP can be divided into immobilisation type and release type. In release AP, a long‐lasting and stable preservation effect can be achieved by adjusting the release rate of PAs. In this review, we focused on the effects of adjusting the multilayers, polymers, and nanocapsule and microcapsule structures of AP on the release mechanisms and applications of PAs. Release mathematical models based on food simulants have limitations in real food applications. Controlled release modifications often affect the properties of AP such as permeability and light transmission; by regulating the interaction between various factors, there is the potential to achieve a synergistic effect between controlled release and other packaging characteristics to maintain food quality.

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Cross-linked biopolymeric films by citric acid for food packaging and preservation

Zhang

Roy

Assadpour

et al. 2023

Advances in Colloid and Interface Science

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Selective antimicrobial food packaging of composite poly(lactic acid) cobalt-citrate films

Cited by 4 publications

References 52 publications

UV‐Blocking and Light‐Responsive Poly (ϵ‐Caprolactone)/ZIF‐8 Multifunctional Composite Films for Efficient Antibacterial Activities

UV‐Blocking and Light‐Responsive Poly (ϵ‐Caprolactone)/ZIF‐8 Multifunctional Composite Films for Efficient Antibacterial Activities

Progress in release‐activated food packaging films

Cross-linked biopolymeric films by citric acid for food packaging and preservation

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