Person: Cabeza Briales, María Concepción
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First Name
María Concepción
Last Name
Cabeza Briales
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Veterinaria
Department
Farmacia Galénica y Tecnología Alimentaria
Area
Tecnología de los Alimentos
Identifiers
3 results
Search Results
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Item Electron spin resonance (ESR) spectroscopy study of dry-cured ham treated with E-beam(Food Chemistry, 2012) Ordóñez Pereda, Juan Antonio; Hoz Perales, Lorenzo De La; Velasco De Diego, Raquel; Cambero Rodríguez, María Isabel; Valhondo Falcón, Margarita; Escudero Portugués, Rosa María; Cabeza Briales, María ConcepciónThe generation, accumulation and decay of free radicals in muscle and fat fractions from three varieties of Spanish dry-cured ham treated (0–4 kGy) in an electron accelerator have been studied by electron spin resonance (ESR) spectroscopy. In the ESR spectra from fat fractions, a well-resolved triplet signal corresponding to an alkyl radical was found only in treated samples. Linear regression models (P < 0.05) were obtained for ESR signal intensity estimation using the absorbed dose and storage time at 4 C (from 0 to 28 days). Several ESR signals were observed in the spectra from muscle fractions related to the presence of metalloprotein complexes. However, no significant (P > 0.05) differences were found between ESR spectra from untreated (0 kGy) and treated (0–4 kGy) samples. Results suggest that the analysis of ESR spectrum in fat samples can be used to evaluate the E-beam treatment of dry-cured hamItem Use of the E-beam radiation to diminish the late blowing of cheese(International Dairy Journal, 2011) Cambero Rodríguez, María Isabel; Hoz Perales, Lorenzo De La; Cabeza Briales, María Concepción; Ordóñez Pereda, Juan Antonio; Velasco De Diego, RaquelThis study examines the effect of E-beam irradiation on the survival of Clostridium tyrobutyricum to diminish the late blowing of cheese. At a dose of 3 kGy brings about a 96% reduction of the C. tyrobutyricum spores. This treatment also provokes an important reduction in the number of common microbiota presumably composed by lactic acid bacteria. Nevertheless, following reparation of damage, these bacteria still grow to reach almost normal levels. At doses lower than 3 kGy, the changes in physico-chemical and sensory characteristics of the cheese were negligible. An increase of redness (a* value) and a decrease of yellowness (b* value) were observed in irradiated samples. The irradiation at dose of 3 kGy had a significant (P < 0.05) effect on the texture, decreasing the hardness and increasing the cohesiveness. Although at 3 kGy some changes of appearance, odour and flavour were detected by sensory analysis, samples were acceptable for consumptionItem Safety and quality of ready-to-eat dry fermented sausages subjected to E-beam radiation(Meat Science, 2009) Cabeza Briales, María Concepción; Hoz Perales, Lorenzo De La; Velasco De Diego, Raquel; Cambero Rodríguez, María Isabel; Ordóñez Pereda, Juan AntonioThe inactivation kinetics in the death of Listeria innocua NTC 11288 (more radioresistant than five different strains of Listeria monocytogenes) and Salmonella Enterica serovar Enteritidis and S. enterica serovar Typhimurium by E-beam irradiation has been studied in two types of vacuum-packed RTE dry fermented sausages (‘‘salchichon” and ‘‘chorizo”) in order to optimize the sanitation treatment of these products. A treatment of 1.29 kGy was calculated to reach the food safety objective (FSO) according to the ‘‘zero tolerance” criterion for the three strains. No irradiation treatment was necessary to meet the 102 c.f.u./g microbiological criterion for L. monocytogenes. Dry fermented sausages treated with 62 kGy had negligible sensory (appearance, odour and taste) modifications. Therefore, this treatment produces safe dry fermented sausages with similar sensory properties to the non-irradiated product