High Pressure Effect on Meat and Lupin Protein Digestibility

Author： de Lamballerie-Anton M.   Delépine S.   Chapleau N.  

Publisher： Taylor & Francis Ltd

ISSN： 0895-7959

Source： International Journal of High Pressure Research, Vol.22, Iss.3, 2002-01, pp. : 649-652

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Abstract

High pressure treatment is a mild treatment concerning the nutritional characteristics: for instance vitamins content is very few affected by high-pressure treatment. But the impact of high-pressure on protein digestibility remains poorly understood. This work presents effect of high-pressure treatment on in vitro digestibility of meat and lupin proteins.Two high-pressure conditions (200 and 500 MPa 10 min.) and a heat treatment of 95 °C, 30 min were studied. In vitro digestibility was evaluated with a pepsin reaction.Results show than for both type of proteins, samples pressurised at 500 MPa were the most hydrolysed. Meat proteins were less hydrolysed than control either after heat or 200 MPa treatment. Lupin proteins where more hydrolysed than control after heat or 200 MPa treatment.Thus we revealed that high-pressure treatment presents an effect on the in vitro digestibility of proteins, opening a new perspective of investigations.

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