Histochemical and biochemical characteristics of four major muscles of the ham
Résumé
Reduction of salt content in processed food is an important issue for both human nutrition and industry. Ham is composed of different muscles and the impact of salt reduction on each of them is unknown. To analyze and understand the effect of salting on the evolution of ham, it is essential to know the characteristics of muscles before applying any technological treatment. Muscles semi-membranosus, biceps femoris, rectus femoris and gluteus medius were selected on their physiological differences. These muscles were finely characterized in their structure and biochemical composition. Each muscle was then cured and cooked with two brines, which brought respectively 1.3% and 1.8% of sodium chloride in the meat. Cooking yield was determined. Significant differences were observed between muscles for physical, biochemical or histological parameters of non-cured muscles and between muscles and salt contents for cooking yield. Thus, muscle characteristics have to be taken into account in any study on the optimization of salting meat.
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