Fast preparative separation of flavones from capitula of Eriocaulon ligulatum (Vell.) L. B. Smith (Eriocaulaceae) by High-speed countercurrent chromatography (HSCCC)
Rev. ciênc. farm. básica apl
;
26(2): 101-103, 2005. ilus
Artículo
en Inglés
| LILACS
| ID: lil-428167
RESUMO
High-speed countercurrent chromatography (HSCCC) is a leading method for the fast separation of natural products from plants. It was used for the preparative isolation of two flavone monoglucosides present in the capitula of Eriocaulon ligulatum (Vell.) L.B.Smith (Eriocaulaceae). This species, know locally as botão-dourado, is exported to Europe, Japan and North America as an ornamental species, constituting an important source of income for the local population of Minas Gerais State, Brazil. The solvent system, optimized in tests prior to the HSCCC run, consisted of the two phases of the mixture ethyl acetate n-propanol water (140880, v/v/v), which led to the successful separation of 6-methoxyluteolin-7-O-Beta-D-allopyranoside and 6-methoxyapigenin-7-O-Beta-D-allopyranoside in only 3 hours. The two flavonoids were identified by NMR (1-D and 2-D) and ESI-MS, comparing their spectra with published data
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Índice:
LILACS (Américas)
Asunto principal:
Flavonoides
/
Eriocaulaceae
Idioma:
Inglés
Revista:
Rev. ciênc. farm. básica apl
Asunto de la revista:
Farmacología
Año:
2005
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Estadual Paulista/BR
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