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- Jairo René Martínez, Carlos Ruiz, Ginna Arias, Elena Stashenko, Optimización de la extracción de antioxidantes de Salvia officinalis L. con CO2 supercrítico , Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales: Vol. 38 No. 148 (2014)
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Abstract
Analytical methodologies based on capillary electrophoresis (CE) and high-performance liquid chromatography (HPLC) were implemented for the separation and quantitation of (±)-catechine, (-)-epicatechine, (-)-epigallocatechine, (-)-epicatechine gallate, and (-)-epigallocatechine gallate in 5 samples of 3 cacao varieties grown in Colombia. HPLC was found to be more reproducible than CE, which turned out to be faster, more economical, and less contaminant. (±)-Catechine (0,07-0,79 mg/g cacao) and (-)-epicatechine (1,99-9,66 mg/g cacao) were determined in aqueous extracts of the 3 cacao varieties.
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