Effect of the use of a commercial phosphate mixture on selected quality characteristics of 2 Spanish-style dry-ripened sausages.
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UNLABELLED: The aim of this study was to evaluate the usefulness of the addition of a commercial phosphate mixture in 2 dry-ripened Spanish-style sausages: "salchichón" and "chorizo." Three batches of each of those sausages were prepared with low and high levels of phosphates, and selected quality variables (moisture, pH, a(w) , lactic and acetic acid, α-amino nitrogen, total free fatty acids, thiobarbituric acid reactive substances, microbial counts, color, and texture analysis) were compared against controls. Furthermore, phosphate-added and control sausages were ranked by consumers in order of preference. In "salchichón," phosphate addition resulted in a significant (P < 0.05) increase in drying rate, and tendencies (not significant) toward a decrease in lipid oxidation and an increase in hardness and chewiness. In "chorizo," the addition of phosphates resulted in higher hardness, elasticity and chewiness, and lower yellowness (P < 0.05). In the manufacture process of dry-ripened sausages, phosphates can be considered as additives with potential enhancement effect in drying and eating quality. PRACTICAL APPLICATION: The main outcome from the present study is to find evidence on which points of reference could be drawn for the technological application of phosphates in dry-ripened sausages. It has been observed that the drying rate and several eating quality characteristics can be enhanced with the use of phosphates.
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