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BIBTEX RIS

Saponins from Ilex dumosa , an Erva-maté ( Ilex paraguariensis ) Adulterating Plant

1997; American Chemical Society; Volume: 45; Issue: 4 Linguagem: Catalão

10.1021/jf960637v

ISSN

1520-5118

Autores

Viviane Silva Pires, Dominique Guillaume, Grace Gosmann, Eloir Paulo Schenkel,

Tópico(s)

Plant biochemistry and biosynthesis

Resumo

Extraction of Ilex dumosa leaves, a material frequently used for the adulteration of erva-maté, resulted in the isolation of 3-O-β-d-glucuronopyranosyl-28-O-β-d-glucopyranosyl-3β-hydroxyolean-12-en-28-oic acid, 3-O-β-d-6-O-methylglucuronopyranosyl-28-O-β-d-glucopyranosyl-3β-hydroxyolean-12-en-28-oic acid, and three new saponins: 3-O-[β-d-glucopyranosyl-(1−2)-β-d-galactopyranosyl]-28-O-β-d-glucopyranosyl-3β,29-dihydroxyolean-12-en-28-oic acid, 3-O-[α-l-arabinopyranosyl-(1−2)-α-l-arabinopyranosyl]-28-O-β-d-glucopyranosyl-3β-hydroxyolean-12-en-28-oic acid, 3-O-β-d-galactopyranosyl-28-O-β-d-glucopyranosyl-3β-hydroxyolean-12-en-28-oic acid. None of these saponins are present in the leaves of Ilex paraguariensis (genuine erva-maté). Keywords: Ilex paraguariensis; Ilex dumosa; erva-maté; saponins

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