Phytochemical and Antioxidant Potentials of Some Indigenous Vegetables Cultivated in Malete, Kwara State, Nigeria
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Date
2021-02-27
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Abstract
Abstract: Indigenous vegetables are important sources of natural antioxidant which play important role
in prevention of degenerative diseases. In this study, five indigenous vegetables (Ocimum basilicum,
Celosia argentea, Amaranthus virides, Talinum triangulare and Corchorus olitorius) cultivated in
Malete, Nigeria were extracted in 95 % methanol and investigated for their phytochemical compositions
and antioxidant activities using 2, 2-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azino-bis-(3-
ethylbenzothiazoline-6-sulphonic acid) (ABTS•+) and hydrogen peroxide radical scavenging assays. The
comparative thin layer chromatography (TLC) of the extracts was carried out on silica gel coated plate
developed in a mixture of organic solvents and visualized with the aid of ultraviolet visible light (uv) at
254 nm, ferric chloride solution and vanillin-H2SO4 spray reagent. The result of TLC analysis showed
many visible components under uv light at 254 nm and after treated with spray reagents, indicating the
presence of many important phytochemicals in the extracts of vegetables. The results of the
phytochemical screening revealed the presence of various medicinally active compounds such as
flavonoids, phenols, alkaloids, terpenoids, saponins etc. in various extracts of indigenous vegetables.
Among the five indigenous vegetables tested, the C.olitorius and O.bacilicum extracts exhibited the
highest antioxidant potentials against DPPH, ABTS and Hydrogen peroxide. This finding provides
insight into the bioactive components and antioxidant potentials of indigenous vegetables cultivated in
Malete.
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Ajiboye A.T., Lasisi T.O., Adebayo Z.F., Hassan A.T. and Abdusalam Z.A. (2021). Phytochemical and Antioxidant Potentials of Some Indigenous Vegetables Cultivated in Malete, Kwara State, Nigeria. International Journal of Ayurveda. 6 (3). 30-36.