CICYTEX La Orden

Spain

CICYTEX La Orden

Spain
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Andres A.I.,University of Extremadura | Petron M.J.,University of Extremadura | Adamez J.D.,Instituto Tecnológico Agroalimentario | Lopez M.,CICYTEX La Orden | Timon M.L.,University of Extremadura
Meat Science | Year: 2017

The aim of this work was to study the in vitro antioxidant potential of aqueous extracts obtained from tomato (TOM), red grape (GRA), olive (OLI) and pomegranate (POM) by-products as well as to evaluate the effect of their addition into lamb meat patties (1000 mg/kg) in order to improve shelf life. A negative (CON) and a positive control (sodium ascorbate, ASC) were also included in the experiment. Results for radical scavenging activity, metal chelating activity and reducing power indicated that GRA and OLI extracts could inhibit oxidation more efficiently than POM and TOM extracts (P < 0.01). Consistently, GRA and OLI treatments showed the highest redness (a*) (P < 0.01) and antioxidant activity, both for lipids and proteins, throughout storage (P < 0.001). Furthermore, in general, microbial counts were reduced by the addition of by-products extracts. These results suggest that the extracts obtained from grape and olive pomaces could be effectively used to replace sodium ascorbate in lamb meat products. © 2017 Elsevier Ltd


Sena-Moreno E.,University of Castilla - La Mancha | Perez-Rodriguez J.M.,CICYTEX La Orden | De Miguel C.,University of Extremadura | Prieto M.H.,CICYTEX La Orden | And 3 more authors.
JAOCS, Journal of the American Oil Chemists' Society | Year: 2017

Olive fruits and virgin olive oils from a super-high-density olive orchard cv. Arbequina under different irrigation treatments (Control, RDI1, RDI2) were characterized by their pigment profile, CIElab colorimetric coordinates, oxidative stability and antioxidant capacity during the olive seasons 2011 and 2012. The control treatment were irrigated according to the total evapotranspiration of the olive grove (100% ETc), while RDI1 and RDI2 consisted of moderate and severe deficit irrigation, respectively. Olive fruits from severe water deficit irrigation treatment (RDI2) showed a significantly greater concentration of pigments compared to the others. In addition, the ratios a*/chlorophylls and chlorophylls/carotenoids indicated a delayed maturation in these olives. Irrigation treatments significantly affected the yellow component (b*) of the virgin olive oils contained. A reduction of 75% in the water applied (RDI2) produced a strong increase in lutein-zeaxanthin content (38%) and chlorophyll a (50%), oxidative stability, that ranged from 8.37 h (Control) to 13.23 h (RDI2) and antioxidant activity compared to Control. However, the oil production from RDI2 decreased approximately a 49%. © 2017, AOCS.


Martinez-Macipe M.,IRTA - Institute of Agricultural-Alimentary Research and Technology | Rodriguez P.,IRTA - Institute of Agricultural-Alimentary Research and Technology | Izquierdo M.,CICYTEX La Orden | Gispert M.,IRTA Food Industries | And 6 more authors.
Meat Science | Year: 2016

This study compared carcass and meat quality traits between 16 vaccinated (VF), 19 castrated (CF) and 8 entire (EF) female Iberian pigs, and between 21 vaccinated (VM) and 19 castrated (CM) male Iberian pigs reared in free ranging conditions. Vaccination consisted in the application of Improvac® at the age of 11, 12 and 14 months in VF and VM. Pigs were slaughtered at 16 months. In females, carcass and meat quality were found to be very similar regardless of the treatment. In males, VM had a leaner carcass, lower (P < 0.05) percentage of intramuscular fat, higher shear force andmore rancidity than CM(P < 0.05 in all cases). It could be concluded that vaccination or castration had no major effects on quality traits in females. It should be then stated that entire females are suitable for free-range conditions in terms of product qualities. Vaccination in females did not alter carcass and meat quality, and specific interests should consider reproductive behavior in free-range conditions. © 2015 Elsevier Ltd.


PubMed | CICYTEX La Orden, IRTA - Institute of Agricultural-Alimentary Research and Technology, Autonomous University of Barcelona and IRTA Food Industries
Type: | Journal: Meat science | Year: 2015

This study compared carcass and meat quality traits between 16 vaccinated (VF), 19 castrated (CF) and 8 entire (EF) female Iberian pigs, and between 21 vaccinated (VM) and 19 castrated (CM) male Iberian pigs reared in free ranging conditions. Vaccination consisted in the application of Improvac at the age of 11, 12 and 14 months in VF and VM. Pigs were slaughtered at 16 months. In females, carcass and meat quality were found to be very similar regardless of the treatment. In males, VM had a leaner carcass, lower (P < 0.05) percentage of intramuscular fat, higher shear force and more rancidity than CM(P < 0.05 in all cases). It could be concluded that vaccination or suitable for free-range conditions in terms of product qualities. Vaccination in females did not alter carcass and meat quality, and specific interests should consider reproductive behavior in free-range conditions.


Galapero J.,University of Extremadura | Fernandez S.,University of Extremadura | Perez C.J.,University of Extremadura | Garcia-Sanchez A.,CICYTEX La Orden | And 2 more authors.
Small Ruminant Research | Year: 2015

The aim of this study was to evaluate immune response function by using neutrophils phagocytic index and parameters associated to stress in order to analyse the effect of feedlot in the fattening lambs classification center (CC). Thirty six Merino lambs were randomly chosen with a live weight about 18-20 kg with 70-90 days of life. Two blood samples were taken in two moments of their period in CC, after the classification processes at the beginning of feedlot and one day before slaughter. High values compared to the reference values were found in red blood cell count (RBC) and haematocrit value, with statistically significant differences (P = 0.003, P = 0.004, respectively) between two moments. However, the increase in the neutrophil/lymphocyte ratio (N/L ratio), the decrease in phagocytosis index and high cortisol values point to stress conditions and a predisposition to develop diseases. © 2015 Elsevier B.V.

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