Temperature, salt and water contents are key processing factors in dry-cured ham production. They affect
how proteolysis, lipid oxidation, structure and texture evolve, and thus determine the sensory properties
and final quality of dry-cured ham. The aim of this study was to quantify the interrelationships and the
time course of (i) proteolysis, (ii) lipid oxidation, (iii) five textural parameters: hardness, fragility,
cohesiveness, springiness and adhesiveness and (iv) four structural parameters: fibre numbers, extracellular
spaces, cross section area, and connective tissue area, during the dry-cured ham process. Applying
multiple polynomial regression enabled us to build phenomenological models relating proteolysis, salt
and water contents to certain textural and structural parameters investigated. A linear relationship
between lipid oxidation and proteolysis was also established. All of these models and relationships, once
combined with salt penetration, water migration and heat transfer models, can be used to dynamically
simulate all of these phenomena throughout dry-cured ham manufacturing.
Temperature, salt and water contents are key processing factors in dry-cured ham production. They affect
how proteolysis, lipid oxidation, structure and texture evolve, and thus determine the sensory properties
and final quality of dry-cured ham. The aim of this study was to quantify the interrelationships and the
time course of (i) proteolysis, (ii) lipid oxidation, (iii) five textural parameters: hardness, fragility,
cohesiveness, springiness and adhesiveness and (iv) four structural parameters: fibre numbers, extracellular
spaces, cross section area, and connective tissue area, during the dry-cured ham process. Applying
multiple polynomial regression enabled us to build phenomenological models relating proteolysis, salt
and water contents to certain textural and structural parameters investigated. A linear relationship
between lipid oxidation and proteolysis was also established. All of these models and relationships, once
combined with salt penetration, water migration and heat transfer models, can be used to dynamically
simulate all of these phenomena throughout dry-cured ham manufacturing.
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