Special Issue "Food Packaging Materials"
Deadline for manuscript submissions: 30 September 2020.
Interests: food contact materials: migration testing and modelling – compliance – safety – consumer exposure; food packaging polymers – oligomers - polymer additives – nanocomposites – contaminants – non-intentionally added substances (NIAS); functional barriers for organic molecules: permeation testing and prediction; microplastics
Interests: food contact materials: migration testing; permeation testing and diffusion and modelling; diffusion of substances in polymers; non-intentionally added substances (NIAS); functional barrier testing
Special Issues and Collections in MDPI journals
Food packaging uses a large variety of materials and components and comprises many packaging types, articles and applications. We are talking about films, wraps, bottles, pouches, cans, cups, closures, lids, labels, paper and board-based articles, coatings, laquers, print and others. In many cases these materials and items are intended for direct contact with foodstuffs. On the other hand, as in the case of multi-layer structures and secondary packaging, food is not in direct contact with the packaging. Besides longstanding conventional food packaging applications, innovations have entered (and still continuously do) the market: active and informative packaging, smart and intelligent approaches, as well as nano-enabled functional packaging solutions.
What all these packaging or food contact scenarios have in common is the following:
- They have to comply with the EU Framework Regulation (EC) No. 1935/2004 (or other analogous regulations in other countries and domains) and in particular with Article 3, which essentially requires that substances do not migrate into foods at unacceptable levels posing a potential health risk to the consumer.
- In all cases, molecules are involved. They are either intentionally used, added or generated to manufacture food contact materials or show up non-intentionally in the food contact material (FCM) due to chemical reactions or as impurity residues.
It is clear that all migrants are molecules but, on the other hand, it is also true that all molecules present in FCMs are not necessarily migrants. The question of whether or not a molecule will become a migrant and transfer into foods depends on its physical–chemical characteristics, the material type and structure of the used FCM, the time–temperature conditions applied during packaging manufacture and thereafter during food contact until end of shelf-life. Further aspects such as: (i) migration processes for single use versus repeat use applications; (ii) clearly defined FCM surface-to-food volume ratios versus undefined ratios as in the case of kitchen utensils; (iii) direct contact versus indirect contact including printing ink set-off; and (iv) others, are further complicating factors.
As a result of modern requirements driven by circular economy policies, bio-based and biodegradable packaging materials may require specific considerations to fulfil the abovementioned Article 3 of the EU Framework Regulation. In this context, the recycling of FCM into new food contact applications deserves increased attention going beyond the already achieved level of the well-established PET bottle-to-bottle recycling.
The objective of this Special Issue is to compile the latest works and progress concerning the migration of molecules from food contact materials in light of the aspects mentioned above and in an effort to highlight and discuss the underlying analytical and physico-chemical achievements. Approaches to predictive migration evaluation as well as the toxicological profiling of migrating molecules and risk assessment represent additional essential scientific aspects and are highly welcome as complementary studies towards the safety-in-use of food packaging materials.
Dr. Roland Franz
Dr. Frank Welle
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. Molecules 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 2000 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.
- Food contact materials
- Polymer additives
- Food packaging safety
- Migration testing and prediction
- Diffusion modelling
- Chemical analysis
- Consumer exposure
- Risk assessment