Examinando por Autor "Irazabal Gallegos, Miriam Belen"

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    Efecto antibacteriano in vitro del extracto etanólico de la cáscara de Citrus reticulata (Mandarina) en cepas de Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli ATCC, Lima 2023
    (Universidad Privada Norbert Wiener, 2024-07-10) Irazabal Gallegos, Miriam Belen; Julca Asenjo, Ana Vilma; Collanque Pinto, Jesús Daniel
    Mortality rates for Staphylococcus aureus, Streptococcus pyogenes, and Escherichia coli ATCC have increased worldwide, representing 40%, 30%, and 20% respectively. The objective of this study was: To analyze the in vitro antibacterial effect of the ethanolic extract of Citrus reticulata (mandarin) peel on strains of Staphylococcus aureus, Streptococcus pyogenes, and Escherichia coli ATCC, Lima 2023. Methodology: Hypothetical-deductive method, quantitative, experimental, cross-sectional, explanatory. The population consisted of 10 kilograms of Citrus reticulata fruit, and the sample was 1 kilogram of mandarin peel. A solubility test was performed to determine the appropriate solvent, and a phytochemical screening was conducted to identify secondary metabolites. The antibacterial effect was evaluated using the Kirby-Bauer method, with experimental groups at 25%, 50%, and 75% concentrations, compared to Levofloxacin 5 µg (positive control). Results: The mean diameters of inhibition zones at 25%, 50%, and 75% concentrations of the ethanolic extract of Citrus reticulata peel against Staphylococcus aureus, Streptococcus pyogenes, and Escherichia coli ATCC were lower than those recorded for Levofloxacin 5 µg. Statistically significant differences were observed between the experimental groups (25%, 50%, and 75%) and the DMSO control.