Comparative Study on the Nutrient Composition and in-Vitro Antioxidant Properties of Leaves and Stems of Ipomoea Involucrata
Journal Title: International Journal of Agriculture Innovations and Research - Year 2018, Vol 7, Issue 2
Abstract
The research investigated the nutritional and in-vitro antioxidant properties of Ipomoea involucrata leaves and stems grown in Southern Nigeria using standard analytical methods. The results of the proximate composition revealed that both leaves (53.10%) and stems (63.33%) had high contents of carbohydrates, followed by high contents of crude fiber of 13.00% and 31.30% for leaves and stems respectively. Vitamin and Mineral analysis showed high values of vitamin A (55.14mg /100g) and calcium (412.7mg/ 100g) for leaves and vitamin C (80.44mg/ 100g) and magnesium (202.36mg/ 100g) for stems. The amino acid analysis revealed high contents of leucine (9.05g/ 100g) for the leaves and arginine (6.01g/ 100g) for the stems. Results of the physiochemical parameters showed that the stem oil exhibited significant (p0.05) higher saponification value than the leaf oil. However, the essential fatty acid; linoleic acid was higher in leaves (11.4%) when compared with the stem (1.49%). The in vitro antioxidant properties of the leaves and stems demonstrated high anti-radical activity at 40µg/ml against DPPH, Hydrogen peroxide, Nitric oxide, and FRAP. The study has shown that the leaves and stems of Ipomoea involucrate contained appreciable amount of nutrients and potent antioxidant properties.
Authors and Affiliations
Opene, A. O. , et al.
Keywords
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