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Journal of Liquid Chromatography & Related Technologies Volume 35, 2012 - Issue 16
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Original Articles

LIGNANS AND FLAVONOIDS ISOLATED FROM CUSCUTA RACEMOSA MART. & HUMB (CONVOLVULACEAE) BY DROPLET COUNTER-CURRENT CHROMATOGRAPHY

Adriana L. Sousa Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Químicas, Rio de Janeiro, Brazil
,
Queitilane S. Sales Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Químicas, Rio de Janeiro, Brazil
,
Raimundo Braz-Filho Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Químicas, Rio de Janeiro, Brazil
&
Rodrigo R. de Oliveira Universidade Estadual do Norte Fluminense Darcy Ribeiro, Laboratório de Ciências Químicas, Rio de Janeiro, BrazilCorrespondence[email protected] ; [email protected]
Pages 2294-2303 | Published online: 05 Oct 2012
 
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Abstract

Lignans and flavonoids were isolated from Cuscuta racemosa Mart. & Humb (Convolvulaceae) by Droplet Counter-Current Chromatography (DCCC). The solvent system was composed of hexane/ethyl acetate/methanol/water (1:2:1:1, v/v). In this experiment it was possible to isolate six substances: 9α-hydroxysesamin, 9β-hydroxysesamin, kaempherol, acuminatolide, quercetin, and pinoresinol. The chemical structures of the six substances were elucidated by NMR and GC-MS.

ACKNOWLEDGMENT

The authors wish to thank the Analytical Center Laboratory of Far-Manguinhos, Fiocruz (Manguinhos, Rio de Janeiro, Brazil), CNPq and FAPERJ for financial support and Mr. John Marr Ditty for his contributions.

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