Loading...
14 results
Search Results
Now showing 1 - 10 of 14
- Exposure assessment of chemicals from packaging materials in foods: reviewPublication . Poças, Maria de Fátima; Hogg, TimIt is recognised that chemicals from packaging and other foodcontact materials can migrate into the food itself and thus be ingested by the consumer. The monitoring of this migration has become an integral part of ensuring food safety. This article reviews the current knowledge on the food safety hazards associated with packaging materials together with the methodologies used in the assessment of consumer exposure to these hazards. Special attention is given to the most promising approaches for exposure assessment and to the technical and other barriers which need addressing.
- An overview of hazards and risks in food contact materialsPublication . Poças, M. F.; Hogg, T.
- Legislação e RegulamentaçãoPublication . Selbourne, Maria do Céu; Poças, Maria de Fátima
- Embalagens activas e inteligentes: promessas à vistaPublication . Poças, Fátima; Delgado, Telma
- Boas práticas no fabrico de papel e cartão para contacto alimentarPublication . Poças, Fátima; Selbourne, Maria do Céu
- Smart packaging technologies for fruits and vegetablesPublication . Poças, Maria F. F.; Delgado, T. F.; Oliveira, Fernanda A. R.
- A critical survey of predictive mathematical models for migration from packagingPublication . Poças, Maria F.; Oliveira, Jorge C; Oliveira, Fernanda A. R.; Hogg, TimThe migration of chemicals from food contact materials into foods is an important issue in food safety.The assessment of materials compliance with regulations includes migration monitoring for many monomers and additives. However,it is recognized that predictive mathematical modelling can be used in many cases, to avoid or to reduce the effort on migration experiments. This article reviews the approaches followed to apply mathematical models to migration, particularly the models used, the approaches to estimate model parameters, and the systems used to experimentally validate the models. Conclusions on the issues requiring further research are drawn.
- Development of a prototype for moulding paper trays for fruit packagingPublication . Poças, M. F. F.; Selbourne, M. C.; Maurício, V. H.; Menezes, E.Cabral de
- Evaluation of two packaging systems for regional cheesePublication . Pantaleão, I.; Pintado, M. E.; Poças, M. F. F.Saloio cheese – a regional Portuguese cheese – is currently sold unpackaged or in a vacuum package. Neither of these packaging systems is acceptable: the first system yields a cheese too hard, because of excessive water loss, while the second yields a white cheese with poor textural properties. The use of a packaging system with a tailor-made moisture barrier, i.e., allowing for water loss, but at a lower rate, is a way of extending the cheese’s shelf-life. The adequate water vapour permeability to preserve the cheese was previously determined as 6.8 · 107 g m/m2day Pa at 8 C. The objective of this work was to develop a packaging system providing the required relative humidity inside the package. Two systems were tested: (i) the active system Humidipak and (ii) perforated plastic films. Both packaging systems succeeded in extending the cheese’s shelf-life by significantly decreasing the water loss. Perforated films require further study on moulds growth control.
- Influência da Embalagem na Qualidade e Preservação do AlimentoPublication . Selbourne, Maria do Céu; Poças, Maria de Fátima