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Cromatografia de troca-iônica aplicada ao isolamento da fração ácida do óleo de copaíba (Copaifera multijuga) e da sacaca (Croton cajucara)

2005; Brazilian Chemical Society; Volume: 28; Issue: 4 Linguagem: Inglês

10.1590/s0100-40422005000400028

ISSN

1678-7064

Autores

Evaristo C. Biscaia, Evaristo C. Biscaia, Valdir Florêncio da Veiga, Ângelo C. Pinto, Sergio Freire de Carvalhaes, Maria Aparecida Medeiros Maciel,

Tópico(s)

Analytical Chemistry and Chromatography

Resumo

THE COPAÍBA OIL (Copaifera multijuga) AND SACACA (Croton cajucara) EXTRACTS.Plant extracts are usually complex mixtures which contain several molecules of different sizes with varied functional groups.Such extracts are a challenge to the chemist of natural products.Ion exchange chromatography in non-aqueous medium, used for separation of basic or acidic fractions from plant extracts, is an important unit operation in preparative scale separations.Anionic macroporous resin in non-aqueous medium was used with success in this study for separation of the acid fraction of Copaifera multijuga (Copaiba oil), rich in labdanic diterpenes and for the methanolic extract of Croton cajucara (acetyl aleuritoric acid).

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