ISSN 2167-0447
International Journal of Agricultural Sciences ISSN: 2167-0447 Vol. 9 (7), pp. 001-005, July, 2019. © International Scholars Journals
Full Length Research Paper
Phytochemical characterization of the extracts of Aframomum danielli flower, leaf, stem and root
M. O. Afolabi1*, G. O. Adegoke1 and Mathooko, F. M.2
1Department of Food Technology University of Ibadan, Ibadan, Nigeria.
2Department of Food Science and Technology, University of Agriculture and Technology, Jomokenyatta, P. O. Box 62000, Nairobi 00200, Kenya.
Accepted 21 April, 2019
Abstract
Phytochemical screening of methanol extracts of the leaves, flowers, stems and roots of Aframomum danielli revealed the presence of alkaloids, cardenolides, flavonoids and polyphenols. Fractions from the extracts were tested for antioxidant activities and lipoxygenase enzyme inhibition. Flower fraction FF5 and leaf fraction LF4, which were the most potent fractions, gave antioxidant effectiveness values of 85.32 ± 0.27 and 53.92 ± 0.03%, respectively on 1,1, diphenyl 1,2 picrylhydrazyl (DPPH) free radicals at a level of 750 µg/ml. The lipoxygenase enzyme inhibition at 750 µg/ml was 87.11 ± 5.13% (FF5) and 82.55 ± 2.62% (LF4). All fractions inhibited Bacillus subtilis, staphylococcus aureaus, Escherichia coli, Salmonella enteriditis, Candida albicans and Aspergillus flavus.
Key words: Phytochemical, Aframomum danielli, leaf, flower, stem, root, characterization.