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Peñalver Miras, Rocío

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Peñalver Miras, Rocío
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Universidad de Murcia. Departamento de Tecnología de los Alimentos,Nutrición y Bromatología
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    Substitution of synthetic nitrates and antioxidants by spices, fruits and vegetables in Clean label Spanish chorizo
    (Elsevier, 2020-10-27) Martínez Zamora, Lorena; Peñalver Miras, Rocío; Ros Berruezo, Gaspar; Nieto Martínez, Gema; Tecnología de Alimentos, Nutrición y Bromatología
    Natural extracts obtained from fruits and vegetables processing are important sources of phenolic compounds and nitrates, with excellent antioxidant and antimicrobial properties. The aim of this study was to elaborate a Clean label dry-cured meat product (Spanish “chorizo”) using Mediterranean Diet ingredients (Citrus, Acerola, Rosemary, Paprika, Garlic, Oregano, Lettuce + Arugula + Watercress, Spinach + Celery, Chard + Beet). For that, a self-life study for 150 days was carried out, when physical-chemical (colour, pH, aw, thiol loss, volatile compounds profile), microbiological, and organoleptic changes were determined. The combination of citrus extracts and leafy green vegetables halved the hexanal and nonanal content for 150 days. In addition, this change did not affect to the sensory properties of the product, which obtained the highest acceptance avoiding the oxidative damage (colour, volatile compounds release, thiol loss) and the microbiological growth. Nevertheless, rosemary extract incorporation altered sensory quality, unless it also avoided protein and lipid oxidation, as well as microbiological growth. Otherwise, Control sample elaborated with synthetic sources of nitrates and nitrites showed a lower sensory quality due to the increased hardness, protein oxidation, hexanal, and nonanal concentrations, related to lipid oxidation, and hence, to rancid flavour apparition.
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    First record of winter pregnant males of two pipefish species in a Mediterranean coastal lagoon
    (Wiley, 2025-08-22) Guerrero Gómez, Adrián; Zamora López, Antonio; Herrero Reyes, Antonio Andrés; Oliva Paterna, Francisco José; Madrid Ruiz, Jorge; Álvarez-Navarro, Víctor M.; Peñalver Miras, Rocío; Torralva Forero, María del Mar; Zoología y Antropología Física; Facultades de la UMU::Facultad de Biología
    Syngnathus abaster Risso, 1827 and Syngnathus typhle L., 1758 are key components of fish assemblages in European transitional waters, with well-documented reproductive cycles typically occurring from spring to autumn. However, recent warming trends in the western Mediterranean has raised questions about potential shifts in their breeding phenology. In January 2025, three pregnant S. abaster males and one S. typhle male were detected in the Mar Menor Coastal lagoon (western Mediterranean), representing the first recorded winter breeding event for both species. The size structure of S. abaster in winter 2025 also contrasted with colder winters, further supporting this interpretation. These findings may reflect a response to recent thermal anomalies and highlight the phenological plasticity of these species. To our knowledge, this is the first indication of potential phenological shifts in syngnathids from transitional waters, with implications for understanding how climate change may influence their reproductive dynamics.
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