title: High pressure treatments on the inactivation of Salmonella Enteritidis and the physicochemical, rheological and color characteristics of sliced vacuum-packaged dry-cured ham.
abstract: The effect of high pressure (HP) on Salmonella Enteritidis in sliced dry-cured ham stored under temperature abuse (8°C) during 60d was investigated. After treatment, reductions of S. Enteritidis were 1.06, 2.54 and 4.32 log units in ham treated at 400, 500 and 600MPa for 5min at 12°C, compared to non-pressurized samples. After 60d, counts of S. Enteritidis in ham treated at 400 and 500MPa were 2.56 and 2.66 log units lower than in non-treated ham, whereas the pathogen was only detected after enrichment in ham treated at 600MPa. Lipid oxidation increased with storage and pressurization, whereas total free amino acid contents were similar in HP and control samples after 60d. Dry-cured ham treated at the highest pressures exhibited lower shear resistance, whereas the maximum force to compress the sample was slightly changed. Color (L*, a* and b*) varied with pressurization and storage. Changes induced by HP in dry-cured ham were attenuated during storage.
authors.affiliation: Departamento Tecnología de Alimentos, INIA, Madrid, 28040 Spain.
authors.forename: María
authors.initials: M
authors.lastname: de Alba
authors.forename: Raquel
authors.initials: R
authors.lastname: Montiel
authors.forename: Daniel
authors.initials: D
authors.lastname: Bravo
authors.forename: Pilar
authors.initials: P
authors.lastname: Gaya
authors.forename: Margarita
authors.initials: M
authors.lastname: Medina
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D003080:Cold Temperature; D003116:Color; D005511:Food Handling / Q000379:methods*; D005516:Food Microbiology; D005519:Food Preservation / Q000379:methods*; D006801:Humans; D015227:Lipid Peroxidation; D008461:Meat Products / Q000032:analysis* / Q000382:microbiology; D011312:Pressure; D012212:Rheology; D012477:Salmonella enteritidis; D013314:Stress, Mechanical; D034421:Sus scrofa; D014618:Vacuum
chemical_list: D000596:Amino Acids