Special Issue "Bio-Based Active Packaging for Shelf Life Extension"

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Bioactive Coatings and Biointerfaces".

Deadline for manuscript submissions: 10 June 2021.

Special Issue Editors

Prof. Dr. Elena Torrieri
E-Mail Website
Guest Editor
Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy
Interests: food packaging design; active packaging; shelf life; modified atmosphere packaging; biopolymer coating and film
Special Issues and Collections in MDPI journals
Prof. Dr. Prospero Di Pierro
E-Mail Website
Guest Editor
Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy
Interests: edible/biodegradable materials; active coatings; intelligent packaging; nanocomposites, encapsulation, enzyme in food technology
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

Increasing environmental concerns regarding the use of synthetic packaging of petrochemical origin together with consumer demands for both higher food quality and longer shelf life have led to increased interest in alternative innovative packaging material, such as bio-based film and active packaging.

Bio-based films are materials or products (partly) derived from biomass (plants). In 2018, the global production capacities of bioplastics amounted to about 2.11 million tonnes, with almost 65 percent (1.2 million tonnes) of the volume destined for the packaging market—the biggest market segment within the bioplastics industry (https://www.european-bioplastics.org/market/).

Active packaging materials are intended to come into contact with foodstuffs to prolong the shelf life or maintain or improve the conditions of packaged food products. They must be designed to deliberately incorporate components that release substances into the packaged food product or into its environment or absorb them from the same.

Using bio-based film to develop active packaging is a way to improve bio-based film performance, food shelf life, and environmental sustainability.

The efficacy of active film on food shelf life extension depends on the nature and quantity of the active compound, the release kinetics, and the specific effect on alteration kinetics of food.

We invite investigators to contribute original research articles, as well as review articles, focused on the development of bio-based active film for food packaging application, focusing on the effect of film structure on release kinetics and on efficacy of the film to reduce alteration kinetics and extend food shelf life.

In particular, the topics of interest include, but are not limited to:

  • Antimicrobial and antioxidant bio-based film;
  • Natural additive as active compound;
  • Encapsulation and controlled release of active compound;
  • Nanomaterial for active packaging;
  • Active packaging design and mathematical modeling;
  • Active packaging and shelf life extension.

Prof. Dr. Elena Torrieri
Prof. Dr. Prospero Di Pierro
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 papers will be 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. Coatings is an international peer-reviewed open access monthly 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 1800 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.

Published Papers (4 papers)

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Research

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Open AccessArticle
Active Biopolymer Coating Based on Sodium Caseinate: Physical Characterization and Antioxidant Activity
Coatings 2020, 10(8), 706; https://doi.org/10.3390/coatings10080706 - 22 Jul 2020
Viewed by 676
Abstract
The objective of this work was to investigate the effect of sodium caseinate concentration on physical-chemical properties of coating solutions and films obtained by casting as a starting point for the development of an active coating for minimally processed fruits or vegetables. Sodium [...] Read more.
The objective of this work was to investigate the effect of sodium caseinate concentration on physical-chemical properties of coating solutions and films obtained by casting as a starting point for the development of an active coating for minimally processed fruits or vegetables. Sodium caseinate solutions at different concentrations (4%, 8%, 10%, 12%, 14%) were used as a coating system. The coating viscosity and desorption kinetic were characterized. Minimally processed fennels were coated by dipping and the liquid and dry coating thickness were estimated by assessing the amount of coating on fennel during draining as a function of solution properties (concentration and viscosity). Film obtained by casting were also characterized in terms of equilibrium moisture content, color, and water vapor permeability. The potential of using the sodium caseinate solution to obtain active coating was investigated by adding gallic acid or rosemary oil to sodium caseinate solution at 4%. The antioxidant capacity of the coating was evaluated by DPPH test. Results show that sodium caseinate solutions follow a Newtonian behavior in the range of concentration investigated and the viscosity increased as solids concentration increased, following a power law. The drying rate was in the range 0.0063–0.00107 mgH2O·mgsolids−1·min−1·m−2 as a function of sodium caseinate concentration. The average liquid and dry coating thickness on fennels were in the range 20–70 and 0.7–6.4 μm, respectively. The water vapor permeability slightly decreased as the solid concentration increased. Active coating showed good antioxidant properties. Full article
(This article belongs to the Special Issue Bio-Based Active Packaging for Shelf Life Extension)
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Open AccessFeature PaperEditor’s ChoiceArticle
Pectin-Based Films Loaded with Hydroponic Nopal Mucilages: Development and Physicochemical Characterization
Coatings 2020, 10(5), 467; https://doi.org/10.3390/coatings10050467 - 10 May 2020
Cited by 1 | Viewed by 1166
Abstract
Nopal is a potential source of mucilage that can be used in different food applications. One of its potential use is the development of films and coatings where it can act as a packaging material but also as a source of bioactive compounds. [...] Read more.
Nopal is a potential source of mucilage that can be used in different food applications. One of its potential use is the development of films and coatings where it can act as a packaging material but also as a source of bioactive compounds. Therefore, this work aimed to develop and characterize pectin-based films loaded with mucilage extracted from two species of nopal, Copena F1 (Cop) and Villanueva (Vi). The obtained mucilages were denominated as materials without fibre (Copwtf and Viwtf) and with fibre (Copwf and Viwf), according to the fibre’s size. Films were produced with pectin (2% w/v), mucilage (2.5% w/v) and glycerol (0.5% w/v) by the casting method. The addition of mucilages was shown to influence the visual appearance, optical properties and morphology of the films. The presence of mucilage also changed the moisture content, water contact angle and water vapour permeability of the films. The pectin-based films without mucilage presented the best mechanical properties. Fourier-transform infrared (FTIR) spectroscopy showed similar signals in terms of frequency and intensity, for all the films, not showing any chemical modification. Results show that the mucilage obtained from different nopal fractions can be used in pectin-based films foreseeing their use as films or coatings in food applications. Full article
(This article belongs to the Special Issue Bio-Based Active Packaging for Shelf Life Extension)
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Open AccessArticle
Starch/Poly(glycerol-adipate) Nanocomposites: A Novel Oral Drug Delivery Device
Coatings 2020, 10(2), 125; https://doi.org/10.3390/coatings10020125 - 01 Feb 2020
Viewed by 1149
Abstract
Biocompatible and bio-based materials are an appealing resource for the pharmaceutical industry. Poly(glycerol-adipate) (PGA) is a biocompatible and biodegradable polymer that can be used to produce self-assembled nanoparticles (NPs) able to encapsulate active ingredients, with encouraging perspectives for drug delivery purposes. Starch is [...] Read more.
Biocompatible and bio-based materials are an appealing resource for the pharmaceutical industry. Poly(glycerol-adipate) (PGA) is a biocompatible and biodegradable polymer that can be used to produce self-assembled nanoparticles (NPs) able to encapsulate active ingredients, with encouraging perspectives for drug delivery purposes. Starch is a versatile, inexpensive, and abundant polysaccharide that can be effectively applied as a bio-scaffold for other molecules in order to enrich it with new appealing properties. In this work, the combination of PGA NPs and starch films proved to be a suitable biopolymeric matrix carrier for the controlled release preparation of hydrophobic drugs. Dynamic Light Scattering (DLS) was used to determine the size of drug-loaded PGA NPs, while the improvement of the apparent drug water solubility was assessed by UV-vis spectroscopy. In vitro biological assays were performed against cancer cell lines and bacteria strains to confirm that drug-loaded PGA NPs maintained the effective activity of the therapeutic agents. Dye-conjugated PGA was then exploited to track the NP release profile during the starch/PGA nanocomposite film digestion, which was assessed using digestion models mimicking physiological conditions. The collected data provide a clear indication of the suitability of our biodegradable carrier system for oral drug delivery. Full article
(This article belongs to the Special Issue Bio-Based Active Packaging for Shelf Life Extension)
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Review

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Open AccessFeature PaperReview
Percolation Model for Renewable-Carbon Doped Functional Composites in Packaging Application: A Brief Review
Coatings 2020, 10(2), 193; https://doi.org/10.3390/coatings10020193 - 24 Feb 2020
Viewed by 934
Abstract
This review summarizes the application of percolation theory for the behavior simulation of renewable-carbon in its doped packaging composites. Such dopant-reinforced materials have sparked considerable interest due to the significant improvement on the aesthetic and mechanical properties at considerable low filler content (<1% [...] Read more.
This review summarizes the application of percolation theory for the behavior simulation of renewable-carbon in its doped packaging composites. Such dopant-reinforced materials have sparked considerable interest due to the significant improvement on the aesthetic and mechanical properties at considerable low filler content (<1% in some cases), which would further boost their potential use in the food and pharmaceutical packaging industries. We focused mainly on the percolation behavior, which is closely related to the distribution of renewable carbon particles in the presence of polymeric matrix. The effect of geometry, alignment and surface property is of particular relevance to the percolation threshold of composites containing carbon fillers. Validity, as well as limitations of the mostly used percolation models, is further discussed. Finally, despite its recent emergence as functional filler, carbon-based nanocellulose has been extensively developed for a wide range of applications. This inspired the concept to use nanocellulose as a secondary bio-additive for packaging purposes, such as functional nanocellulose-coated film where primarily synthetic polymers are used. The microstructure and functionality of rod-like nanocellulose in its use for film composite are specifically discussed. Full article
(This article belongs to the Special Issue Bio-Based Active Packaging for Shelf Life Extension)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

 

 

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