Percorrer por autor "Karlovits, Igor"
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- Current usage of paperboard packaging: a case study of the European landscape on tomato packagingPublication . Singh, Srishti; Sögut, Ece; Uysal-Unalan, Ilke; Karlovits, Igor; Coma, Véronique; Corredig, Milena; Poças, FátimaCurrent pressures to decrease plastic packaging for food have resulted in increased demand for paperboard packaging of fruits and vegetables. Additionally, the new European Regulation on packaging waste calls for recyclable and for incorporation of recycled fibre in packages which challenges safety. Resistance in humid conditions is critical for paper-based packaging for fresh fruits and vegetables and cellulosic materials are typically chemically treated for improving these parameters. The content in recycled fibre also affects the resistance to moisture and as consequence the composition in additives required for sizing. It is recognised that several factors contribute to the behaviour of the paperboard, including the fibre origin, physic-mechanical treatments, bulk composition and material surface treatments. This work aimed at addressing the relationship between these factors, by conducting a deep physic-chemical characterisation of packages of cherry tomato collected in 4 European countries, in both high and low-cost supermarkets. Samples varied in terms of fibre origin, treatments (bleaching, printing), functional additives (surface or bulk agents). Statistical analysis demonstrated that it is possible to group samples according to different properties that are inter-related, such as the type of fibre and typical formulations (i.e. plasticizers and functional additives used). Materials varied significantly in their performance regarding the hydrophobicity character. Repulpability was also tested as step needed for recyclability. A number of chemicals of concern with Cramer class III toxicity such as mineral oil hydrocarbon, biocide, DiPN isomers and BPA replacers were observed across the samples. This work represents a concept study for larger inter-European studies and clearly points to the need for harmonization of practices and regulations for the utilization of paperboard as food contact material.
- Sustainable food packaging: an updated definition following a holistic approachPublication . Dörnyei, Krisztina Rita; Uysal-Unalan, Ilke; Krauter, Victoria; Weinrich, Ramona; Incarnato, Loredana; Karlovits, Igor; Colelli, Giancarlo; Chrysochou, Polymeros; Fenech, Margaret Camilleri; Pettersen, Marit Kvalvåg; Arranz, Elena; Marcos, Begonya; Frigerio, Valeria; Apicella, Annalisa; Yildirim, Selçuk; Poças, Fátima; Dekker, Matthijs; Johanna, Lahti; Coma, Véronique; Corredig, MilenaFood packaging solutions need to be redesigned to be more sustainable, but determining which solution is ‘more optimal’ is a very difficult task when considering the entire food product value chain. Previous papers paved the way toward a sustainable food packaging definition, but it is far from being commonly accepted or well usable in the broad food systems domain, which further results in uninformed choices for sustainable food packaging made by all stakeholders in the value chain: producers, distributors, practitioners and consumers. Therefore, this work aims first at giving a state-of-the-art overview of sustainable food packaging terms (38 similar terms were identified and grouped into four clusters: Sustainable, Circular, Bio and Other sustainable packaging) and definitions using systematic (narrative) review analysis and ‘controlled expert opinion feedback’ methodology. Second, it aims to offer an updated definition for sustainable food packaging, which is also specific to food packaging and be simple, coherent, easily understandable, and communicable to everybody. The applied holistic approach intends to include all aspects of the food-packaging unit, to consider food safety and packaging functionality, while taking into account different disciplines and challenges related to food packaging along the supply chain. Being a balancing act, a sustainable food packaging may not be a perfect solution, but contextual, suboptimal and in need of constant validation.