On-line version ISSN 1678-4596
FLORES, Rejane et al. Extraction of ecdysterone from roots of Brazilian ginseng. Cienc. Rural [online]. 2009, vol.39, n.4, pp. 1223-1226. ISSN 1678-4596. http://dx.doi.org/10.1590/S0103-84782009000400042.
This study aimed at optimizing the extraction method from ecdysterone of Brazilian ginseng. Root samples of two accessions (BRA and JB-UFSM) of P. glomerata were extracted in a Soxhlet with methanol or chloroform for 4h. In the second trial, the extration was conduced in a Soxhlet or ultrasonic using metanol as a solvent. In P. tuberosa, the roots samples were extracted with methanol in a Soxhlet or in ultrasonic. The ecdysterone content was determinated using high efficiency liquid chromatography methods. In both studied species, the highest ecdisterone content was detected from samples extracted in a Soxhlet and using methanol as a solvent. This extration method has been successfully applied for determination of ecdysterone content from roots of Brazilian ginseng, and could be useful for the quality control of drugs and pharmaceutical formulations.
Keywords : Pfaffia glomerata; Pfaffia tuberosa; ecdysteroids; phytomedicine; quality control.