Electrospun polylactic acid /poly (ε-caprolactone) fibrous encapsulated thymol/MIL-68(Al) as a food packaging material
A controlled-release antibacterial active food packaging film was prepared from polylactic acid (PLA), poly (ε-caprolactone) (PCL), MIL-68(Al), and thymol (THY) by electrospinning. The performance, antioxidant activity and antibacterial activity of the MIL-68 (Al)/PLA/PCL nanofiber membrane loaded w...
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Published in | Journal of materials research and technology Vol. 18; pp. 5032 - 5044 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.05.2022
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | A controlled-release antibacterial active food packaging film was prepared from polylactic acid (PLA), poly (ε-caprolactone) (PCL), MIL-68(Al), and thymol (THY) by electrospinning. The performance, antioxidant activity and antibacterial activity of the MIL-68 (Al)/PLA/PCL nanofiber membrane loaded with THY were characterized, and the release behavior of THY from the nanofiber membrane was also explored. The addition of THY/MIL-68 (Al) could improve the water vapor barrier performance and UV resistance of the nanofiber membrane, while weakening the tensile strength and elongation at break. The load of MIL-68 (Al) could effectively improve the residence time of THY. Antioxidant experiments show that the nanofiber membrane inherits the antioxidative activity of THY, that only adding 4wt% of THY can improve the free radical scavenging ability, and that the quenching ability of DPPH free radicals can reach 50%. The in vitro antibacterial test showed that the nanofiber could effectively inhibit the growth of E. coli and S. aureus. The results indicated that THY/MIL-68 (Al)/PLA/PCL had a certain potential as a food active packaging, and MIL-68 (Al) had a strong controlled release ability for THY. |
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ISSN: | 2238-7854 |
DOI: | 10.1016/j.jmrt.2022.04.110 |