Search results for "Albizia adianthifolia"
showing 4 items of 4 documents
Two new biologically active triterpenoidal saponins acylated with salicylic acid from Albizia adianthifolia
2003
International audience; Two new oleanane-type triterpene saponins, adianthifoliosides A (1) and B (2), were isolated from a 95% ethanolic extract of roots of Albizia adianthifolia. Their structures were elucidated mainly by using a combination of 600 MHz 1D and 2D NMR techniques (COSY, NOESY, TOCSY, HSQC, and HMBC) and by FABMS and HRESIMS. Compounds 1 and 2 were characterized as glycosides of acacic acid acylated by an o-hydroxybenzoyl unit. The crude saponin mixture (CSM), compounds 1 and 2 together with 3 and 4 (prosapogenins obtained from the mild alkaline hydrolysate of the CSM), were evaluated for immunomodulatory activity on the Jurkat T cell line and for hemolytic property against s…
New Triterpenoidal Saponins Acylated with Monoterpenic Acid fromAlbizia adianthifolia
2004
Four new triterpenoidal saponins acylated with monoterpenic acid, i.e., adianthifoliosides C, D, E, and F (1–4), besides the two known julibroside III and the monodesmonoterpenyl elliptoside A, were isolated from the roots of Albizia adianthifolia. Their structures were elucidated on the basis of extensive 1D- and 2D-NMR studies and mass spectrometry as 3-O-{O-α-L-arabinopyranosyl-(12)-O-β-d-fucopyranosyl-(16)-O-[β-d-glucopyranosyl-(12)]-β-d-glucopyranosyl}-21-O-{(2E,6S)-6-{{4-O-[(2E,6S)-2,6-dimethyl-6-(β-D-quinovopyranosyloxy)octa-2,7-dienoyl]-β-d-quinovopyranosyl}oxy}-2-(hydroxymethyl)-6-methylocta-2,7-dienoyl}acacic acid 28-{O-α-L-arabinofuranosyl-(14)-O-[β-d-glucopyranosyl-(13)]-O-α-L-r…
Induction of apoptosis in a leukemia cell line by triterpene saponins from Albizia adianthifolia
2004
Abstract Triterpenoid saponins, which are present in plants and some marine animals, exert various important pharmacological effects. The present study examines the effects of adianthifoliosides A, B, and D (AdA, AdB, and AdD) together with two prosapogenins (Pro1 and Pro2) obtained from Albizia adianthifolia (Mimosaceae) on human leukemia T-cells (Jurkat cells) and on splenocytes. AdA, AdB, and AdD were found to exhibit a cytotoxic effect on Jurkat cells, whereas the prosapogenins were found to exert a lymphoproliferative effect on this cell type. Furthermore, all tested compounds were found to exert a synergistic lymphoproliferative activity with concanavalin A (ConA) on splenocytes. The …
Saponin with antibacterial activity from the roots of Albizia adianthifolia
2019
AbstractAn unprecedented saponin is being reported herein together with five known compounds from the methanol extract of the roots of Albizia adianthifolia. The metabolites were obtained over repe...