Production and Characterization of Poly(lactic acid) and Poly(ε-caprolactone) Films Enriched with Pomegranate Peel Extract: Toward Biodegradable and Sustainable Food Packaging.
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| Title: | Production and Characterization of Poly(lactic acid) and Poly(ε-caprolactone) Films Enriched with Pomegranate Peel Extract: Toward Biodegradable and Sustainable Food Packaging. |
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| Authors: | Uslu, Ömer Faruk1 (AUTHOR), Aral, Nebahat1,2 (AUTHOR), Argün, Sinem2,3 (AUTHOR), Taştan Ülkü, Özge1,2 (AUTHOR) ozge.tastan@yeditepe.edu.tr |
| Source: | Polymers (20734360). Apr2026, Vol. 18 Issue 7, p896. 23p. |
| Subjects: | Polylactic acid, Polycaprolactone, Plant extracts, Thermal stability, Ultraviolet filters, Biodegradable materials, Compostable materials, Polymer films |
| Abstract: | Recently, more sustainable and biodegradable packaging materials have begun to attract attention in food packaging due to major, rising concerns related to plastic usage. This study aims to develop and characterize biodegradable food packaging materials, namely poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) enriched with pomegranate peel extract (PoPE). Firstly, the optimal extract selected was a 24 h maceration of PoPE with 60% ethanol, after production with different solvents and methods. PLA- and PCL-based films were produced via melt compounding with the addition of PoPE at different concentrations (1, 3, 5 and 10%, w/w). FTIR confirmed that the PoPE did not modify the chemical backbones of PLA or PCL, with only a more pronounced O–H band in PCL, suggesting mainly non-covalent/physical interactions. UV–Vis spectroscopy showed tunable warm coloration and strong UV shielding with reduced transparency; for PLA ~3–5 wt.%, PoPE enabled near-complete UV blocking, while PCL achieved very high UV protection even at low loadings. PoPE improved toughness in PLA (3–5 wt.%) and maintained ductility in PCL (1–10 wt.%). PoPE-added PLA and PCL films maintained thermal stability up to 10 wt.% according to TGA results. DSC/XRD indicated a matrix-dependent crystallization response. PLA remained largely amorphous, whereas PoPE promoted PCL crystallinity without changing polymer crystal polymorphs. SEM images revealed homogenous dispersion of PoPE in the films. [ABSTRACT FROM AUTHOR] |
| Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 192959332 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Production and Characterization of Poly(lactic acid) and Poly(ε-caprolactone) Films Enriched with Pomegranate Peel Extract: Toward Biodegradable and Sustainable Food Packaging. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Uslu%2C+Ömer+Faruk%22">Uslu, Ömer Faruk</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Aral%2C+Nebahat%22">Aral, Nebahat</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Argün%2C+Sinem%22">Argün, Sinem</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Taştan+Ülkü%2C+Özge%22">Taştan Ülkü, Özge</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> ozge.tastan@yeditepe.edu.tr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymers+%2820734360%29%22">Polymers (20734360)</searchLink>. Apr2026, Vol. 18 Issue 7, p896. 23p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Polylactic+acid%22">Polylactic acid</searchLink><br /><searchLink fieldCode="DE" term="%22Polycaprolactone%22">Polycaprolactone</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+extracts%22">Plant extracts</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stability%22">Thermal stability</searchLink><br /><searchLink fieldCode="DE" term="%22Ultraviolet+filters%22">Ultraviolet filters</searchLink><br /><searchLink fieldCode="DE" term="%22Biodegradable+materials%22">Biodegradable materials</searchLink><br /><searchLink fieldCode="DE" term="%22Compostable+materials%22">Compostable materials</searchLink><br /><searchLink fieldCode="DE" term="%22Polymer+films%22">Polymer films</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Recently, more sustainable and biodegradable packaging materials have begun to attract attention in food packaging due to major, rising concerns related to plastic usage. This study aims to develop and characterize biodegradable food packaging materials, namely poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) enriched with pomegranate peel extract (PoPE). Firstly, the optimal extract selected was a 24 h maceration of PoPE with 60% ethanol, after production with different solvents and methods. PLA- and PCL-based films were produced via melt compounding with the addition of PoPE at different concentrations (1, 3, 5 and 10%, w/w). FTIR confirmed that the PoPE did not modify the chemical backbones of PLA or PCL, with only a more pronounced O–H band in PCL, suggesting mainly non-covalent/physical interactions. UV–Vis spectroscopy showed tunable warm coloration and strong UV shielding with reduced transparency; for PLA ~3–5 wt.%, PoPE enabled near-complete UV blocking, while PCL achieved very high UV protection even at low loadings. PoPE improved toughness in PLA (3–5 wt.%) and maintained ductility in PCL (1–10 wt.%). PoPE-added PLA and PCL films maintained thermal stability up to 10 wt.% according to TGA results. DSC/XRD indicated a matrix-dependent crystallization response. PLA remained largely amorphous, whereas PoPE promoted PCL crystallinity without changing polymer crystal polymorphs. SEM images revealed homogenous dispersion of PoPE in the films. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymers (20734360) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/polym18070896 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 23 StartPage: 896 Subjects: – SubjectFull: Polylactic acid Type: general – SubjectFull: Polycaprolactone Type: general – SubjectFull: Plant extracts Type: general – SubjectFull: Thermal stability Type: general – SubjectFull: Ultraviolet filters Type: general – SubjectFull: Biodegradable materials Type: general – SubjectFull: Compostable materials Type: general – SubjectFull: Polymer films Type: general Titles: – TitleFull: Production and Characterization of Poly(lactic acid) and Poly(ε-caprolactone) Films Enriched with Pomegranate Peel Extract: Toward Biodegradable and Sustainable Food Packaging. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Uslu, Ömer Faruk – PersonEntity: Name: NameFull: Aral, Nebahat – PersonEntity: Name: NameFull: Argün, Sinem – PersonEntity: Name: NameFull: Taştan Ülkü, Özge IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 20734360 Numbering: – Type: volume Value: 18 – Type: issue Value: 7 Titles: – TitleFull: Polymers (20734360) Type: main |
| ResultId | 1 |
