The manufacture of restructured dry-cured hams involves a contamination risk with pathogens such as Listeria monocytogenes. This work studied the effect of E-beam, as sanitizing treatment, on the binding capacity of plasma powder (PP). For that, model systems of restructured boneless dry-cured hams were manufactured by adapting the conventional processing of dry-cured hams to their reduced size. They were contaminated with L. innocua as a surrogate and treated bilaterally with 2 kGy. The PP binding properties were determined using tensile tests. The microstructure of the binding area was studied by scanning electron microscopy. The results showed that the binding force increased progressively with the processing time and was not modified by the irradiation treatment. Scanning electron microscopy of the binding area showed increasingly compact and dense structures probably related to changes in proteins structure induced by the treatment.
Bibliographical noteFunding Information:
Project INIA (Ref. RTA 2013-00070-C03-02 and RTA 2017-00027-C03-02 ), European Found FEDER and Investigation Group BSCH-UCM Nº 920276 Ref GR3/14 are acknowledged. J.R. Lucas thanks the Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica (CONCYTEC) of the government of Perú (contract Nº 215-2015-FONDECYT ).
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- Binding force
- Plasma powder
- Restructured dry-cured ham