Article (Scientific journals)
Phenolic compounds from the roots of Ochna schweinfurthiana and their antioxidant and antiplasmodial activities
Messi, A. N.; Ngo Mbing, J.; Ndongo, J. T. et al.
2016In Phytochemistry Letters, 17, p. 119-125
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Keywords :
Antioxidant and antiplasmodial activities; Isobiflavonoid; Ochnaceae; Structural elucidation
Abstract :
[en] An investigation of compounds extracted from Ochna schweinfurthiana roots with ethyl acetate led to the isolation of three new compounds 4‴-methoxylophirone A (1), 4,4′,4‴–trimethoxylophirone A (2) and (4E;7Z)-3,8-dicarboxy-1-(O-β-D-glucopyranosyl-(1 → 6)-O-β-D-glucopyranosyl-2,9-dihydroxyhexeicosa-4,7-diene (3). Six known compounds were also identified, including Calodenone (4), Calodenine B (5), Lophirone A (6), Gerontoisoflavone A(7), 16α,17-dihydroxy-ent-kauran-19-oic acid (8) and 3β-O-D-glucopyranosyl-β-sitosterol (9). This report describes the first time that compounds 4-8 have been isolated from this plant, while 8 has never been identified in the genus Ochna. Some of the isolated compounds were evaluated for their antiplasmodial activity against the chloroquine-sensitive Plasmodium falciparum strain 3D7 and antioxidant activity using DPPH radical scavenging and Ferric reducing-antioxidant power (FRAP) assays. Compound 5 exhibited prominent radical scavenging and FRAP activities, while 7 had weak activity. Compound 1 showed good in vitro anti-plasmodial activity. The structures of the isolated compounds were elucidated by spectroscopic methods and comparisons with prior data in the literature. © 2016 Phytochemical Society of Europe
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Messi, A. N.;  Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
Ngo Mbing, J.;  Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon, Centre de Recherche en Plantes Médicinales et Médecine Traditionnelle (CRPMT), I.M.P.M, Yaoundé, Cameroon
Ndongo, J. T.;  Department of Chemistry, Higher Teacher Training College, University of Yaoundé 1, P. O. Box 47, Yaoundé, Cameroon
Nyegue, M. A.;  Laboratory of Microbiology, Faculty of science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
Tchinda, A. T.;  Centre de Recherche en Plantes Médicinales et Médecine Traditionnelle (CRPMT), I.M.P.M, Yaoundé, Cameroon
Yemeda, F. L.;  Laboratory of Microbiology, Faculty of science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
Frederich, Michel  ;  Université de Liège > Département de pharmacie > Pharmacognosie
Pegnyemb, D. E.;  Department of Organic Chemistry, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaoundé, Cameroon
Language :
English
Title :
Phenolic compounds from the roots of Ochna schweinfurthiana and their antioxidant and antiplasmodial activities
Publication date :
2016
Journal title :
Phytochemistry Letters
ISSN :
1874-3900
eISSN :
1876-7486
Publisher :
Elsevier, Amsterdam, Netherlands
Volume :
17
Pages :
119-125
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 04 November 2016

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