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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Cytotoxic and antioxidant triterpene saponins from Butyrospermum parkii (Sapotaceae)
Carbohydrate Research, Volume 346, No. 17, Year 2011
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Description
Three new triterpenoid saponins, elucidated as 3-O-β-d- glucopyranosyloleanolic acid 28-O-β-d-xylopyranosyl-(1→4)-α-l- rhamnopyranosyl-(1→2)-β-d-xylopyranoside (parkioside A, 1), 3-O-[β-d-apifuranosyl-(1→3)-β-d-glucopyranosyl]oleanolic acid 28-O-[β-d-apifuranosyl-(1→3)-β-d-xylopyranosyl-(1→4) -[α-l-rhamnopyranosyl-(1→3)]-α-l-rhamnopyranosyl-(1→2) β-d-xylopyranoside (parkioside B, 2) and 3-O-β-d-glucuronopyranosyl- 16α-hydroxyprotobassic acid 28-O-α-l-rhamnopyranosyl-(1→3)- β-d-xylopyranosyl-(1→4)-α-l-rhamnopyranosyl-(1→2) -β-d-xylopyranoside (parkioside C, 3), were isolated from the n-BuOH extract of the root bark of Butyrospermum parkii, along with the known 3-O-β-d-glucopyranosyloleanolic acid (androseptoside A). The structures of the isolated compounds were established on the basis of chemical and spectroscopic methods, mainly 1D and 2D NMR data and mass spectrometry. The new compounds were tested for both radical scavenging and cytotoxic activities. Compound 2 showed cytotoxic activity against A375 and T98G cell lines, with IC 50 values of 2.74 and 2.93 μM, respectively. Furthermore, it showed an antioxidant activity comparable to that of Trolox or butylated hydroxytoluene (BHT), used as controls, against 2,2-diphenyl-1-picryl hydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), oxygen and nitric oxide radicals. © 2011 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Tapondjou, Léon Azéfack
Cameroon, Dschang
University of Dschang
Nyaa, Laurentine B.T.
Cameroon, Dschang
University of Dschang
Tané, Pierre
Cameroon, Dschang
University of Dschang
Ricciutelli, Massimo
Italy, Camerino
Università Degli Studi Di Camerino
Quassinti, Luana
Italy, Camerino
Università Degli Studi Di Camerino
Bramucci, Massimo
Italy, Camerino
Università Degli Studi Di Camerino
Lupidi, Giulio
Italy, Camerino
Università Degli Studi Di Camerino
Ponou, Beaudelaire Kemvoufo
Italy, Camerino
Università Degli Studi Di Camerino
Barboni, Luciano
Italy, Camerino
Università Degli Studi Di Camerino
Statistics
Citations: 49
Authors: 9
Affiliations: 2
Identifiers
Doi:
10.1016/j.carres.2011.09.014
ISSN:
00086215
e-ISSN:
1873426X