Browsing by Subject "Colour"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Publication
    Open Access
    Antibacterial effect of Spanish honeys of different botanical origins against Staphylococcus epidermidis
    (MDPI, 2024-06-15) Núñez Gómez, Vanesa; San Mateo Molina, Marta; Sánchez Martínez, Lorena; Periago Castón, María Jesús; Tecnología de Alimentos, Nutrición y Bromatología; Facultad de Veterinaria
    Honey is traditionally used for its medicinal properties attributed to its antibacterial and antioxidant effects. It is considered a natural alternative to conventional antibiotics. This effect has been attributed to their physico-chemical properties, as various chemical parameters can synergistically influence this effect. The aim of this study is to assess Spanish honeys of diverse botanical origins for their antibacterial efficacy against Staphylococcus epidermidis, correlating their physico-chemical attributes, (poly)phenol content, and antioxidant activity. The methods included colour determination via two methodologies, acidity, pH, moisture content, and sugar concentration. (Poly)phenol content was quantified using the Folin-Ciocalteau method, while antioxidant activity was evaluated via the FRAP method. Subsequently, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) against S. epidermidis were investigated with different concentrations of honeys. The results revealed a direct relationship between honey darkness, (poly)phenol concentration, antioxidant activity, and antibacterial efficacy. Darker honeys exhibited higher (poly)phenol levels, greater antioxidant activity, and consequently, lower MIC and MBC values, showing enhanced antibacterial properties. These findings underscore the potential of honey as a therapeutic agent against S. epidermidis, particularly in wound healing applications to avoid infection. Further research into honey’s multifaceted properties is warranted to unveil novel therapeutic avenues in healthcare
  • Thumbnail Image
    Publication
    Open Access
    Estudio del azafrán (Crocus sativus L.) en la provincia de Albacete. II. Color
    (Murcia: Universidad de Murcia, Servicio de Publicaciones, 1987) Gómez, R.; Varón Castellanos, Ramón; García, M.; Vázquez, A.; Alonso, G.; Facultad de Biología
    En este trabajo se estudia el poder colorante de diversas poblaciones de azafrán de la provincia de Albacete, así como su variación con el tiempo.