
handle: 11336/243374
This study focused on the scavenging action and antioxidant activity of propolis from Trancas (ProTr) as a promoter and scavenger of Riboflavin (Rf)-photogenerated reactive oxygen species (ROS), widely used in traditional medicine as an antioxidant. A thorough examination of the antioxidant activity of ethanolic extract (EE) was made possible by a kinetic and mechanistic study of the total polyphenol contents in the extract using stationary photolysis and time-resolved photochemical methods.Under aerobic visible-light-irradiation conditions, with Rf as the only light-absorber molecule, a complex frame of competitive interactions takes place, with the triplet excited states of Rf being quenched by ProTr. Rf triplet excited states can interact with ProTr or produce singlet oxygen and superoxide radical anions. The results indicated ProTr to be an efficient ROS scavenger. The antioxidant behavior of ProTr is similar to that of Trolox, a well-known antioxidant. Propolis is slightly photodegraded by interaction with the mentioned ROS, highlighting the crucial role of ProTr and its potential in mitigating oxidative stress-induced damage in biological systems. These findings suggest that ProTr could be a promising natural alternative to synthetic antioxidants for combating oxidative stress.
Fil: Natera, Jose Eduardo. Universidad Nacional de Rio Cuarto. Facultad de Agronomia y Veterinaria. Departamento de Estudios Basicos y Agropecuarios; Argentina. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina
Fil: Sacchetto, Julieta Lorena. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina
Fil: Massad, Walter Alfredo. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina
Fil: Tolay, Martin Maximiliano. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Ingeniería en Procesos y Gestión Industrial; Argentina
Fil: Airaghi, Florencia. Universidad Nacional de Tucumán. Facultad de Ciencias Exactas y Tecnología. Departamento de Ingeniería en Procesos y Gestión Industrial; Argentina
Photodegradation, https://purl.org/becyt/ford/1.4, Vitamin B2 (Rf), Antioxidant, https://purl.org/becyt/ford/1, Propolis
Photodegradation, https://purl.org/becyt/ford/1.4, Vitamin B2 (Rf), Antioxidant, https://purl.org/becyt/ford/1, Propolis
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