Technological approach to reduce NaCl content of traditional smoked dry-cured hams: effect on quality properties and stability
2015
Martuscelli, Maria | Lupieri, Laura | Chaves-Lopez, Clemencia | Mastrocola, Dino | Pittia, Paola
The modification of the salting procedure (from a three- to a two-salt coverage steps) and its effects on quality and stability properties has been investigated to reduce NaCl content of traditional dry-cured ham. The study was applied on green hams of small-S and large-L weight classes. Results evidenced that a two-salt coverage steps salting could be applied to reduce significantly NaCl content of S-size hams and to reach the physico-chemical conditions required for microbial stability at the end of ripening. The final salt content of the products results (p < 0.05) to depend on salting procedure and initial weight of the hams, while limited differences on quality properties have been observed being the latter mainly associated to the pattern of the volatile compounds. In particular, aldehydes and hexanal content were lower in hams undergone to a 2-steps salting. Sensory analysis evidenced that the hams with reduced NaCl (2s-S and 2s-L) were less easy to chew, less salty and with a lower intensity of the smoky flavour in respect to the 3s- ones. The study confirmed the feasibility of salt content reduction of traditional dry-cured hams by modifying the salting process. However, the weight of the initial tights resulted a critical factor in affecting salting diffusion, salt content and water activity of the ripened products, their quality and stability properties.
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