Browsing by Author "Raiyemo, D. A."

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    Phytochemical and proximate composition of Tithonia diversifolia (Hemsl) A. Gray
    (Annals Food Science Technology, 2015) Olayinka, B. U.; Raiyemo, D. A.; Etejere, E. O.
    Phytochemical and proximate composition of Tithonia diversifolia leaves, stem and root were compared in this study using standard procedures. The results showed that both aqueous and ethanol extracts of the plant parts tested positive for alkaloids, saponins, tannins, terpenoids flavonoids and phenols. These phytochemicals were found to be significantly highest in the leaves, followed by the root and the stem except the phenol which was significantly highest in the root. Among the phytochemicals, alkaloids was found to be highest (53.33 ± 6.58 mg/100 g) followed in decreasing order by tannins, flavonoids, saponins, terpenoids and phenols with respective mean values of 382.22 ± 7.58 mg/100 g, 338.89 ± 3.50 mg/100 g, 327.78 ± 7.33 mg/100 g, 65.00 ± 3.69 mg/100 g and 48.46 ± 0.32 mg/100 g. In all the proximate composition, crude fibre was highest (53.57 ± 0.14 %) and this was found in the stem, followed by carbohydrate (52.27 ± 0.32%) which was found in the leaves while the least proximate composition was crude fat (0.27 ± 0.03%) found in the stem. In all the plant parts, carbohydrate was found to be highest (41.84 ± 0.19), followed in decreasing order by crude fibre, moisture, total ash, crude protein and crude fat with mean values of 32.79 ± 0.10%, 9.19 ± 0.05%, 8.97 ± 0.07%, 5.99 ± 0.24% and 1.19 ± 0.05% respectively. The results indicated that, Tithonia diversifolia most importantly its leaves and root have high nutritive and medicinal values that could be explored for pharmaceutical purposes.