Comparative Assessment of Phytochemicals, Proximate and Elemental Composition of Gnetum africanum (Okazi) Leaves

  • Okerulu I
  • Onyema C
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Abstract

The leaves of Gnetum africanum were studied for their proximate (nutrient), mineral (elemental) and phytochemical constituents. All analyses were done using standard analytical procedures and the results obtained showed a moisture content, crude protein, ash content, crude fibre, crude lipids and carbohydrates of 10.9%, 20.12%, 6.70%, 7.10%, 2.79% and 52.39% respectively. The mineral (elemental) analysis showed the presence of sodium, magnessium, calcium, iron, zinc, manganesse, potassium and copper in that order of decreasing concentration while notably absent was chromium and lead in the examined leaves. The phytochemicals detected in the leaves using various selected solvents were alkaloids, saponins, glycosides and tannins with various concentrations while flavonoids, phenols and steroids were totally absent. From the results of the aforementioned analyses, it could be concluded that the leaves of Gnetum africanum contain some beneficial nutrients, mineral elements and secondary metabolites justifying the medicinal status and possible potency of the plant part.

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Okerulu, I. O., & Onyema, C. T. (2015). Comparative Assessment of Phytochemicals, Proximate and Elemental Composition of Gnetum africanum (Okazi) Leaves. American Journal of Analytical Chemistry, 06(07), 604–609. https://doi.org/10.4236/ajac.2015.67058

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