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Phytochemical composition, cytotoxicity and in vitro antiplasmodial activity of fractions from Alafia barteri olive (Hook F. Icon)-Apocynaceae.

Authors :
Lasisi, A.A.
Olayiwola, M.A.
Balogun, S.A.
Akinloye, O.A.
Ojo, D.A.
Source :
Journal of Saudi Chemical Society; Jan2016, Vol. 20 Issue 1, p2-6, 5p
Publication Year :
2016

Abstract

The ethanolic extract of Alafia barteri (Hook F. Icon) was dissolved in distilled water and successively partitioned in n -hexane, chloroform, ethyl acetate and n -butanol. The fractions were evaluated for phytochemical composition, lethality against brine shrimp larvae and in vitro antiplasmodial activity against Plasmodium falciparum strain. The obtained results revealed that the roots and leaf extracts of A. barteri exhibited broad spectrum of antiplasmodial activity (IC 50 1.5 ± 0.7–6.2 ± 0.80 μg/mL). The aqueous leaf fractions displayed the most potent antiplasmodial activity with an IC 50 value of 1.5 ± 0.7 μg/mL, which is comparable to reference antimalarial drug (IC 50 value of 1.3 ± 0.2 μg/mL). The leaf fractions displayed higher activity than the root extracts. The highest minimum lethal concentration (105.2 ± 0.8 ppm) was exhibited by the aqueous leaf extract followed closely by the root extract (120.2 ± 1.1 ppm). The leaf extracts contained higher polyphenols (45.3 ± 0.85 mgGAE/g) and flavonoids (18.10 ± 0.2 mgCTE/g) than the root extracts. The n -hexane and EtOAc extracts/fractions displayed lower activity on brine shrimp larvae. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
13196103
Volume :
20
Issue :
1
Database :
Supplemental Index
Journal :
Journal of Saudi Chemical Society
Publication Type :
Academic Journal
Accession number :
112827020
Full Text :
https://doi.org/10.1016/j.jscs.2012.05.003