Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging Applications
Water-resistant and environmentally friendly sodium-alginate-based films have been investigated to develop functional materials to extend the food’s shelf-life. A water-stable alginate-based film was prepared, employing both the internal and external gelation approach in the presence of CaCl<sub&...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | International Journal of Molecular Sciences |
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| Online Access: | https://www.mdpi.com/1422-0067/24/14/11462 |
| _version_ | 1797589043573161984 |
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| author | Jennifer Gubitosa Vito Rizzi Cosma Marasciulo Filippo Maggi Giovanni Caprioli Ahmed M. Mustafa Paola Fini Nicoletta De Vietro Antonella Maria Aresta Pinalysa Cosma |
| author_facet | Jennifer Gubitosa Vito Rizzi Cosma Marasciulo Filippo Maggi Giovanni Caprioli Ahmed M. Mustafa Paola Fini Nicoletta De Vietro Antonella Maria Aresta Pinalysa Cosma |
| author_sort | Jennifer Gubitosa |
| collection | DOAJ |
| description | Water-resistant and environmentally friendly sodium-alginate-based films have been investigated to develop functional materials to extend the food’s shelf-life. A water-stable alginate-based film was prepared, employing both the internal and external gelation approach in the presence of CaCl<sub>2</sub>. To apply this film to food packaging and thus preserve food quality, the aim of this work is to perform a chemical and physical characterization of the proposed materials, evidencing the main features and stability under different work conditions. Water contact angle measurements showed a value of 65°, suggesting an important reduced hydrophilic character of the obtained alginate films due to the novel CaCl<sub>2</sub>-induced compacted polymer network. The film’s stability was thus checked through swelling measurements in water after varying pH, temperature, and ionic strength. The film was stable at high temperatures and not pH-responsive. Only highly concentrated salt-based solutions negatively affected the proposed packaging, causing a large swelling. Furthermore, a water-based polyphenolic extract from grape (<i>Vitis vinifera</i> L.) pomace waste was embedded inside the films in different amounts in order to confer additional properties. The extract’s polyphenolic content (evaluated from HPLC/MS-MS measurements) endowed the films’ UV-light screening and enhanced antioxidant properties. These important findings suggest the additional potential role of these films in protecting food from light deterioration. The stability of these hybrid films was also checked by observation, as the polyphenols’ presence did not largely alter the alginate network that occurred yet was water-resistant under the described work conditions. |
| first_indexed | 2024-03-11T01:00:44Z |
| format | Article |
| id | doaj.art-77d7cb567e494677909f1770d38ed1e2 |
| institution | Directory Open Access Journal |
| issn | 1661-6596 1422-0067 |
| language | English |
| last_indexed | 2024-03-11T01:00:44Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Molecular Sciences |
| spelling | doaj.art-77d7cb567e494677909f1770d38ed1e22023-11-18T19:39:48ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672023-07-0124141146210.3390/ijms241411462Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging ApplicationsJennifer Gubitosa0Vito Rizzi1Cosma Marasciulo2Filippo Maggi3Giovanni Caprioli4Ahmed M. Mustafa5Paola Fini6Nicoletta De Vietro7Antonella Maria Aresta8Pinalysa Cosma9Dipartimento di Chimica, Università degli Studi “Aldo Moro” di Bari, Via Orabona, 70126 Bari, ItalyDipartimento di Chimica, Università degli Studi “Aldo Moro” di Bari, Via Orabona, 70126 Bari, ItalyDipartimento di Chimica, Università degli Studi “Aldo Moro” di Bari, Via Orabona, 70126 Bari, ItalyChemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Ma-donna delle Carceri 9/B, 62032 Camerino, ItalyChemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Ma-donna delle Carceri 9/B, 62032 Camerino, ItalyChemistry Interdisciplinary Project (ChIP) Research Center, School of Pharmacy, University of Camerino, Via Ma-donna delle Carceri 9/B, 62032 Camerino, ItalyConsiglio Nazionale delle Ricerche CNR-IPCF, UOS Bari, Via Orabona, 70126 Bari, ItalyDipartimento di Bioscienze, Biotecnologie e Ambiente, Università degli Studi “Aldo Moro” di Bari, Via Orabona, 70126 Bari, ItalyDipartimento di Bioscienze, Biotecnologie e Ambiente, Università degli Studi “Aldo Moro” di Bari, Via Orabona, 70126 Bari, ItalyDipartimento di Chimica, Università degli Studi “Aldo Moro” di Bari, Via Orabona, 70126 Bari, ItalyWater-resistant and environmentally friendly sodium-alginate-based films have been investigated to develop functional materials to extend the food’s shelf-life. A water-stable alginate-based film was prepared, employing both the internal and external gelation approach in the presence of CaCl<sub>2</sub>. To apply this film to food packaging and thus preserve food quality, the aim of this work is to perform a chemical and physical characterization of the proposed materials, evidencing the main features and stability under different work conditions. Water contact angle measurements showed a value of 65°, suggesting an important reduced hydrophilic character of the obtained alginate films due to the novel CaCl<sub>2</sub>-induced compacted polymer network. The film’s stability was thus checked through swelling measurements in water after varying pH, temperature, and ionic strength. The film was stable at high temperatures and not pH-responsive. Only highly concentrated salt-based solutions negatively affected the proposed packaging, causing a large swelling. Furthermore, a water-based polyphenolic extract from grape (<i>Vitis vinifera</i> L.) pomace waste was embedded inside the films in different amounts in order to confer additional properties. The extract’s polyphenolic content (evaluated from HPLC/MS-MS measurements) endowed the films’ UV-light screening and enhanced antioxidant properties. These important findings suggest the additional potential role of these films in protecting food from light deterioration. The stability of these hybrid films was also checked by observation, as the polyphenols’ presence did not largely alter the alginate network that occurred yet was water-resistant under the described work conditions.https://www.mdpi.com/1422-0067/24/14/11462alginate-based filmsgrape pomacepolyphenolic extractsfood-packagingantioxidantscircular economy |
| spellingShingle | Jennifer Gubitosa Vito Rizzi Cosma Marasciulo Filippo Maggi Giovanni Caprioli Ahmed M. Mustafa Paola Fini Nicoletta De Vietro Antonella Maria Aresta Pinalysa Cosma Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging Applications International Journal of Molecular Sciences alginate-based films grape pomace polyphenolic extracts food-packaging antioxidants circular economy |
| title | Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging Applications |
| title_full | Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging Applications |
| title_fullStr | Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging Applications |
| title_full_unstemmed | Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging Applications |
| title_short | Realizing Eco-Friendly Water-Resistant Sodium-Alginate-Based Films Blended with a Polyphenolic Aqueous Extract from Grape Pomace Waste for Potential Food Packaging Applications |
| title_sort | realizing eco friendly water resistant sodium alginate based films blended with a polyphenolic aqueous extract from grape pomace waste for potential food packaging applications |
| topic | alginate-based films grape pomace polyphenolic extracts food-packaging antioxidants circular economy |
| url | https://www.mdpi.com/1422-0067/24/14/11462 |
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