Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch Material
This study focuses on developing a biodegradable film using a novel hybrid citrus peel pectin. A bilayer approach with PLA was proposed and optimized using Response Surface Methodology (RSM) to complement pectin films’ mechanical and barrier property limitations. The optimized film composition (2.90...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/16/5/712 |
| _version_ | 1797263971469754368 |
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| author | Nurul Saadah Said Ibukunoluwa Fola Olawuyi Won Young Lee |
| author_facet | Nurul Saadah Said Ibukunoluwa Fola Olawuyi Won Young Lee |
| author_sort | Nurul Saadah Said |
| collection | DOAJ |
| description | This study focuses on developing a biodegradable film using a novel hybrid citrus peel pectin. A bilayer approach with PLA was proposed and optimized using Response Surface Methodology (RSM) to complement pectin films’ mechanical and barrier property limitations. The optimized film composition (2.90 g PLA and 1.96 g pectin) showed enhanced mechanical strength with a tensile strength (TS) of 7.04 MPa and an elongation at break (EAB) of 462.63%. In addition, it demonstrated lower water vapor (1.45 × 10<sup>−10</sup> g/msPa), oxygen (2.79 × 10<sup>−7</sup> g/ms) permeability, and solubility (23.53%). Compared to single-layer pectin films, the optimized bilayer film had a 25% increased thickness, significantly improved water barrier (3806 times lower) and oxygen barrier (3.68 times lower) properties, and 22.38 times higher stretchability, attributed to hydrogen bond formation, as confirmed by FTIR analysis. The bilayer film, effectively protected against UV and visible light, could be a barrier against light-induced lipid oxidation. Moreover, it demonstrated superior seal efficiency, ensuring secure sealing in practical applications. The bilayer pouch containing mustard dressing exhibited stable sealing with no leakage after immersion in hot water and ethanol, making it suitable for secure food pouch packaging. |
| first_indexed | 2024-04-25T00:21:29Z |
| format | Article |
| id | doaj.art-c419aefbd3c74821be57a01587cad4a9 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-04-25T00:21:29Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-c419aefbd3c74821be57a01587cad4a92024-03-12T16:53:46ZengMDPI AGPolymers2073-43602024-03-0116571210.3390/polym16050712Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch MaterialNurul Saadah Said0Ibukunoluwa Fola Olawuyi1Won Young Lee2School of Food Science and Technology, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Food Science and Technology, Kyungpook National University, Daegu 41566, Republic of KoreaSchool of Food Science and Technology, Kyungpook National University, Daegu 41566, Republic of KoreaThis study focuses on developing a biodegradable film using a novel hybrid citrus peel pectin. A bilayer approach with PLA was proposed and optimized using Response Surface Methodology (RSM) to complement pectin films’ mechanical and barrier property limitations. The optimized film composition (2.90 g PLA and 1.96 g pectin) showed enhanced mechanical strength with a tensile strength (TS) of 7.04 MPa and an elongation at break (EAB) of 462.63%. In addition, it demonstrated lower water vapor (1.45 × 10<sup>−10</sup> g/msPa), oxygen (2.79 × 10<sup>−7</sup> g/ms) permeability, and solubility (23.53%). Compared to single-layer pectin films, the optimized bilayer film had a 25% increased thickness, significantly improved water barrier (3806 times lower) and oxygen barrier (3.68 times lower) properties, and 22.38 times higher stretchability, attributed to hydrogen bond formation, as confirmed by FTIR analysis. The bilayer film, effectively protected against UV and visible light, could be a barrier against light-induced lipid oxidation. Moreover, it demonstrated superior seal efficiency, ensuring secure sealing in practical applications. The bilayer pouch containing mustard dressing exhibited stable sealing with no leakage after immersion in hot water and ethanol, making it suitable for secure food pouch packaging.https://www.mdpi.com/2073-4360/16/5/712pectinPLAbilayer filmbiodegradable packagingfilm optimizationfood pouch |
| spellingShingle | Nurul Saadah Said Ibukunoluwa Fola Olawuyi Won Young Lee Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch Material Polymers pectin PLA bilayer film biodegradable packaging film optimization food pouch |
| title | Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch Material |
| title_full | Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch Material |
| title_fullStr | Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch Material |
| title_full_unstemmed | Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch Material |
| title_short | Tailoring Pectin-PLA Bilayer Film for Optimal Properties as a Food Pouch Material |
| title_sort | tailoring pectin pla bilayer film for optimal properties as a food pouch material |
| topic | pectin PLA bilayer film biodegradable packaging film optimization food pouch |
| url | https://www.mdpi.com/2073-4360/16/5/712 |
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