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Prediction of mass transfer during the wet cooking of pork meat

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Poster. The control of cooking loss is critical for meat industry by affecting both technological yield and meat quality (juiciness, tenderness, loss of nutritional components, etc.). During heating, complex phenomena of contraction and juice migration occur in meat. Simplification was previously performed by a kinetic model to simulate the cooking loss of beef meat (Oillic et al., 2009).

This study aimed to test if the model developed on beef meat is applicable on pork meat and to adapt it.
PDF icon Prediction of mass transfer during the wet cooking of pork meat

Analysis of the juice and water losses in salted and unsalted pork samples heated in water bath. Consequences for the prediction of weight loss by transfer models

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This study has analyzed the effect of different factors on variation of meat weight due to juice loss, and variation of water content of pork samples heated in a water bath. The weight loss (WL) was influenced by initial water content of raw meat which can be connected to meat pH, muscle type, and by pre-salting. WL was also influenced by sample thickness and by nature of the surrounding fluid. These effects were significant at 50 °C and in thinner samples but decreased as meat temperature and sample thickness increased. WL showed no significant difference in response to prior freezing, applying a surface constraint during heating or varying meat salt content from 0.8 to 2.0%. The results were interpreted from literature knowledge on protein denaturation, contraction and, transport phenomena. Reliably predicting WL from water content variation during heating hinges on taking into account the loss of dry matter and the possible effects of meat pH, sample size or surrounding fluid.


Comment définir une « Bonne viande de porc » sur le plan organoleptique

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Visuels d'intervention présentés par Gilles Nassy, à Space 2018 (Matinales de l'Ifip), le 11-14 septembre 2018, Rennes

PDF icon Visuels de Gilles Nassy, Matinales au Space IFIP, le 11-14 septembre 2018, Rennes