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Food safety evaluation for cassava and yam producers in Nigeria

Ferraro, Vincenza; Piccirillo, C.; Teixeira, Paula; Obadina, A.; Adegunwa, M. O.; Omohimi, C. I.; Hogg, Timothy A.; Sanni, L.; Tomlins, K.


The antimicrobial effect of pulsed electric fields (pef) against brettanomyces/...

Couto, José António; Santos, João; Redondo, Luís; Andrade, Mário; Campos, Francisco; Hogg, Timothy A.; Pereira, Marcos T.


Food safety evaluation for cassava and yam producers in Nigeria

Ferraro, Vincenza; Piccirillo, C.; Teixeira, Paula; Obadina, A.; Adegunwa, M. O.; Omohimi, C. I.; Hogg, Timothy A.; Sanni, L.; Tomlins, K.


Modelling migration from paper into a food simulant

Poças, Maria de Fátima; Oliveira, Jorge C.; Pereira, Joel R.; Brandsch, Rainer; Hogg, Timothy

The migration of components from paper into Tenax was studied to determine the influence of molecular size and chemical character of the migrant and the influence of paper characteristics in the migration process. The Weibull model was applied because Fick’s 2nd law of diffusion gave poor fits in some cases. The migration pattern depended on the migrants molecular size and was independent of temperature in the ...



Feasibility study on the use of probabilistic migration modeling in support of ...

Poças, Maria F.; Oliveira, Jorge C.; Brandsch, Rainer; Hogg, Timothy

The use of probabilistic approaches in exposure assessments of contaminants migrating from food packages is of increasing interest but the lack of concentration or migration data is often referred as a limitation. Data accounting for the variability and uncertainty that can be expected in migration, for example, due to heterogeneity in the packaging system, variation of the temperature along the distribution ch...


Young adults and the consumer of wine perceptions, attitudes and behaviour

Silva, Ana Patrícia; Figueiredo, Isabel; Hogg, Timothy; Sottomayor, Miguel


Monitorização de efluxo de potássio e fosfato de células bacterianas (Listeria ...

Ferreira, M. Teresa S. O. B.; Teixeira, Helena I. S.; Tóth, Ildikó V.; Campos, Francisco M.; Couto, José A.; Hogg, Timothy A.; Rangel, António O. S. S.


A critical survey of predictive mathematical models for migration from packaging

Poças, Maria F.; Oliveira, Jorge C; Oliveira, Fernanda A. R.; Hogg, Timothy

The 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 follow...


Development of a flow injection method for monitoring cell membrane damage of w...

Torres, André F.; Mesquita, Paulo A. R.; Campos, Francisco M.; Couto, José A.; Tóth, Ildikó V.; Rangel, António O. S. S.; Hogg, Timothy A.

A flow injection analysis (FIA) system was developed for the determination of phosphate efflux from wine lactic acid bacteria (Oenococus oeni and Lactobacillus hilgardii) as an indication of cell membrane damage. The system allowed the direct injection of the cell suspension, avoiding the filtration step, with minimumsample treatment andminimized reagent consumption. The developed system is characterized by a l...


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    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia