Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5791248 | Meat Science | 2015 | 7 Pages |
Abstract
The effect of hydrogen peroxide-induced protein oxidation and pH (4.8 and 5.2) on meat proteolysis was investigated in a meat model system for dry fermented sausages. In oxidised samples, increased protein carbonyl contents and decreased thiol concentrations were found. The initial concentration of protein carbonyls was significantly lower in oxidised samples at pHÂ 4.8 than in ones at pHÂ 5.2, but after ten days comparable levels were reached. The inhibition of proteolysis by the addition of a protease inhibitor cocktail did not influence protein oxidation. Yet, proteolysis was negatively affected by low pH values as well as by oxidation, resulting in a reduced release of amino acids during ripening.
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Authors
Alberto Berardo, Erik Claeys, Els Vossen, Frédéric Leroy, Stefaan De Smet,