May 2013

Acetyl and buteryl cholinesterase inhibitory effect of Peltophorum pterocarpum (DC) Backer ex K. Heyne (family Leguminosae)

Peltophorum pterocarpum, family Leguminosae is a tree natural to tropical South-Eastern Asia and was brought to Nigeria by immigrants. It has been used traditionally by the South Western people of the country as memory enhancer and anti-ageing. The present study was done to assess the cholinesterase inhibitory activity of the extracts and fractions of P. pterocarpum using spectrophotometric and thin layer...

Author(s): O. Elufioye Taiwo, M. Obuotor Efere, M. Agbedahunsi Joseph and A. Adesanya Saburi

May 2013

Chemical composition and biological activity of essential oils of Cleopatra mandarin (Citrus reshni) cultivated in Egypt

A comparative study of the essential oils isolated from the leaf and fruit peel of Cleopatra mandarin (Citrus reshni) was carried out using gas liquid chromatography (GLC) and GLC/mass analysis (MS). Over 140 components were observed in GLC/MS, of which 123 could be identified. 112 compounds were quantitatively analyzed in the leaf oil with linalool as a major component. The total identified components in the fruit peel...

Author(s): Dalia I. Hamdan, Rehab H. Abdulla, Maged E. Mohamed and Assem M. El-Shazly

May 2013

Biochemical effects of leaf extracts of Gongronema latifolium and selenium supplementation in alloxan induced diabetic rats

This study evaluated the effect of selenium and extracts of Gongronema latifolium on some biochemical parameters in alloxan-induced diabetic rats. Forty male albino rats equally divided into eight experimental groups were used. Two groups served as normal and diabetic control and received placebo treatment. Four diabetic test groups were treated with G. latifolium extract, glibenclamide, combination...

Author(s): E. E. J. Iweala, F. O Uhegbu and O. A. Adesanoye

April 2013

Chemical composition of the methanolic leaf and stem bark extracts of Senna siamea Lam.

The study was conducted to evaluate some chemical constituents of the leaf and stem bark of Senna siamea. Standard methods were used in all the analysis. Preliminary phytochemical screening indicated the presence of flavonoids, tannins, polyphenols, anthraquinones, saponins, and glycosides. Quantitative study of some phytoconstituents showed a significant difference of (p < 0.05) between the leaf contents and...

Author(s): Mohammed, A., Liman, M. L. and Atiku, M. K.