TY - JOUR
T1 - Morphological, thermo-mechanical, and barrier properties of coextruded multilayer polylactide composite films reinforced with graphene nanoplatelets and encapsulated thyme essential oil
AU - Ahmed, Jasim
AU - Bher, Anibal
AU - Auras, Rafael
AU - Al-Zuwayed, Sheikha A.
AU - Joseph, Antony
AU - Mulla, Mehraj F.
AU - Alazemi, Abdullah
N1 - Funding Information:
This work was supported by Kuwait Foundation for Advancement of Science and the Kuwait Institute for Scientific Research (Grant numbers: PR18–13MM-02 and FB133C). Support from the Kuwait University Nanotechnology Research Facility (KUNRF; GE01/07) is acknowledged. The authors would like to thank Aateka Vahora, Mahmoud Soliman for technical assistance. Data available upon request.
Funding Information:
This work was supported by Kuwait Foundation for Advancement of Science and the Kuwait Institute for Scientific Research (Grant numbers: PR18–13MM-02 and FB133C ). Support from the Kuwait University Nanotechnology Research Facility (KUNRF; GE01/07 ) is acknowledged. The authors would like to thank Aateka Vahora, Mahmoud Soliman for technical assistance.
Publisher Copyright:
© 2023 Elsevier Ltd
PY - 2023/12
Y1 - 2023/12
N2 - The food industry has been looking for biodegradable active packaging film, which has a lower environmental footprint and can extend shelf-life. This work aimed to develop a polylactide-based antibacterial nanopackaging with a tri-layer structure. This coextruded tri-layer film was composed of an internal extruded layer of polylactide (PLA), a central layer of PLA loaded with encapsulated thyme essential oil, and an outer layer of PLA with graphene nanoplatelets. The tri-layer packaging films' morphological, rheological, thermal, barrier, and antibacterial properties were evaluated and compared to those of their single-layer counterparts. Dispersion of nanoparticles in PLA matrix or in composites is described by rheological, thermal, and XRD analysis. The multilayer films displayed some roughness on the surface, and heterogeneity can be seen through phase imaging compared to single-layer films. Antibacterial assays of the film confirmed a strong bactericidal effect against gram-positive and gram-negative bacteria, maintaining this activity for 21 days.
AB - The food industry has been looking for biodegradable active packaging film, which has a lower environmental footprint and can extend shelf-life. This work aimed to develop a polylactide-based antibacterial nanopackaging with a tri-layer structure. This coextruded tri-layer film was composed of an internal extruded layer of polylactide (PLA), a central layer of PLA loaded with encapsulated thyme essential oil, and an outer layer of PLA with graphene nanoplatelets. The tri-layer packaging films' morphological, rheological, thermal, barrier, and antibacterial properties were evaluated and compared to those of their single-layer counterparts. Dispersion of nanoparticles in PLA matrix or in composites is described by rheological, thermal, and XRD analysis. The multilayer films displayed some roughness on the surface, and heterogeneity can be seen through phase imaging compared to single-layer films. Antibacterial assays of the film confirmed a strong bactericidal effect against gram-positive and gram-negative bacteria, maintaining this activity for 21 days.
KW - Antibacterial
KW - Coextrusion
KW - Complex viscosity
KW - Essential oil
KW - Glass transition temperature
KW - Surface topography
UR - http://www.scopus.com/inward/record.url?scp=85173469576&partnerID=8YFLogxK
U2 - 10.1016/j.fpsl.2023.101179
DO - 10.1016/j.fpsl.2023.101179
M3 - Article
AN - SCOPUS:85173469576
SN - 2214-2894
VL - 40
JO - Food Packaging and Shelf Life
JF - Food Packaging and Shelf Life
M1 - 101179
ER -