Browsing by Author "Tafurt García, Geovanna"
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ANTIOXIDANT CAPACITY AND TOTAL PHENOL CONTENT OF HYPTIS SPP., P. HEPTAPHYLLUM, T. PANAMENSIS, T. RHOIFOLIA, AND OCOTEA SP.
Tafurt García, Geovanna; Jiménez Vidal, Luisa; Calvo Salamanca, AnaIn this work, the possible correlation between the antioxidant activities and the Total Phenolic Content (TPC) and chemical composition of Lamiaceae (H. conferta, H. dilatata, H. mutabilis, H. suaveolens), Burseraceae (P. ...Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Química. -
Biosorption of Chlorothalonil on Fique’s Bagasse (Furcraea sp.): Equilibrium and Kinetic Studies
Tafurt García, Geovanna; Figueroda Quinchía, Adriana Maria; Ramírez Carmona, Margarita EnidThe bagasse generated as residue during the process of fiber extraction of the fique or sisal (Furcraea sp.) has been evaluated in raw state, washed and thermally activated for the adsorption of chlorothalonil (CLT). The ...Universidad Nacional de Colombia Sede Orinoquía Instituto de Estudios Orinocenses. -
Decolorization of Reactive Black 5 Dye by Heterogeneous Photocatalysis with TiO2/UV
Copete-Pertuz, Ledys S.; Pérez-Grisales, María Susana; Castrillón-Tobón, Marian; Correa Londoño, Guillermo A.; Tafurt García, Geovanna; Mora Martínez, Amanda LucíaReactive Black 5 (RB5) is an azo dye widely used in the textile industry because of its high chemical stability. Since it does not entirely fix on the fabrics, it pollutes water sources. In this work, the decolorization ...Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Química. -
Evaluación de la actividad antioxidante de aceites esenciales en emulsiones degradadas por radiación ultravioleta
Tafurt García, Geovanna; Martínez, Jairo; Stashenko, ElenaEn este trabajo se evaluaron las actividades antioxidantes in vitro de los aceites esenciales de Origanum vulgare L., Rosmarinus officinalis L. y Coriandrum sativum L., en emulsiones de agua en aceite (Ag/Ac) y aceite ...Universidad Nacional de Colombia Sede Orinoquía Instituto de Estudios Orinocenses. -
Quantitative structure–activity relationships to predict in vitro teac and ec50 of synthetic anilines
Tafurt García, Geovanna; Martinez, Jairo René; Stashenko, Elena; Vargas, Leonor Y.Quantitative Structure-Activity Relationships (QSAR) are useful in understanding how chemical structure relates to the biological activity of natural or synthetic compounds and for designing newer and better compounds. In ...Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Química. -
Relaciones cuantitativas actividad-estructura para predecir la TEAC y la EC50 de anilinas sintéticas
Tafurt García, Geovanna; René Martínez, Jairo; Stashenko, Elena; Vargas, LeonorLas relaciones cuantitativas actividad-estructura (QSAR) son útiles para entender la forma en que la estructura química de sustancias sintéticas y naturales se relaciona con la actividad biológica, y para el diseño de ...Universidad Nacional de Colombia Sede Orinoquía Instituto de Estudios Orinocenses. -
Volatile Secondary Metabolites in Cascarillo (Ocotea caparrapi (Sandino-Groot ex Nates) Dugand - Lauraceae)
Tafurt García, Geovanna; Muñoz Acevedo, AmnerIn this work, the chemical analysis of the volatile fractions obtained by simultaneous distillation-extraction of aerial parts of a species of Ocotea aff. O. caparrapi known as “Cascarillo” was carried out by GC-MS. The ...Universidad Nacional de Colombia Sede Orinoquía.