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Advances in Natural Polymers for Sustainable Food Packaging

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Circular and Green Sustainable Polymer Science".

Deadline for manuscript submissions: 31 October 2025 | Viewed by 59

Special Issue Editors

Laboratório Associado, Escola Superior de Biotecnologia, CBQF—Centro de Biotecnologia e Química Fina, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
Interests: active and biodegradable films; active and intelligent packaging; bioactive compounds; food ingredients and additives; use of agro-industrial waste; eco-friendly innovation; sustainability

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Guest Editor
Laboratório Associado, Escola Superior de Biotecnologia, CBQF—Centro de Biotecnologia e Química Fina, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
Interests: agri-food valorization; bioactive compounds; sustainability; phenolic compounds; antimicrobial activity; antifungal activity; antibiofilm; antioxidants

Special Issue Information

Dear Colleagues,

We are pleased to announce a Special Issue titled "Advances in Natural Polymers for Sustainable Food Packaging".

The growing demand for sustainable packaging drives advances in natural polymers to replace non-biodegradable plastics.

This Special Issue aims to explore the latest developments in natural polymers, such as polysaccharides, proteins, and lipids, which offer biodegradable and renewable alternatives to synthetic plastics. It highlights innovative approaches and challenges while showcasing advances in the field of sustainable food packaging and promoting the transition toward greener materials in the food industry.

Key topics include (I) novel fabrication techniques, (II) material enhancements for improved barrier properties, (III) biodegradability assessments, and (IV) the integration of active and intelligent packaging functionalities.

We welcome you to submit an innovative original research or review paper on the formulation, characterization, and performance of natural polymer-based packaging, as well as their potential for commercialization and regulatory considerations, and contribute meaningfully to this Special Issue.

Dr. Adma Melo
Dr. Tiago Barros Afonso
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • natural polymer
  • eco-friendly innovation
  • barrier properties
  • functional packaging
  • mechanistic properties
  • biodegradable
  • antimicrobial
  • antioxidant
  • sustainable
  • edible film

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Published Papers (1 paper)

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Research

19 pages, 2214 KiB  
Article
Alginate Edible Films Containing Essential Oils: Characterization and Bioactive Potential
by Ana I. Lopes, Adma Melo, Tiago B. Afonso, Sara Silva, Lillian Barros, Freni K. Tavaria and Manuela Pintado
Polymers 2025, 17(9), 1188; https://doi.org/10.3390/polym17091188 - 27 Apr 2025
Abstract
Essential oils (EOs) are natural substances rich in phenolic compounds with notable antimicrobial and antioxidant properties. However, they present some limitations, such as low stability and bioavailability. Incorporating EOs into polymeric films offers a novel approach to overcome these challenges while enhancing their [...] Read more.
Essential oils (EOs) are natural substances rich in phenolic compounds with notable antimicrobial and antioxidant properties. However, they present some limitations, such as low stability and bioavailability. Incorporating EOs into polymeric films offers a novel approach to overcome these challenges while enhancing their efficacy. In this study, we produced and thoroughly characterized alginate-based edible films incorporated with five different EOs—rosemary, eucalyptus, oregano, sage, and thyme. This is the first comprehensive investigation to include this diverse range of EOs in alginate films. Their antimicrobial and antioxidant activities were also evaluated. The results demonstrated that alginate films containing EOs exhibited significant bioactive properties. Notably, the film incorporated with oregano EO completely inhibited the growth of all tested bacteria and fungi and showed the highest antioxidant activity. Based on these findings, alginate films containing EOs present promising bioactive potential and could serve as biodegradable alternatives to conventional packaging materials, reducing environmental impact. However, further studies are necessary to assess their safety profile and confirm their viability as replacements for traditional food packaging. Future research should focus on evaluating cytotoxicity, genotoxicity, and the practical application of these films in food matrices. Full article
(This article belongs to the Special Issue Advances in Natural Polymers for Sustainable Food Packaging)
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