Browsing by Author "Ogungbemi, R. F."

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    Comparative assessment of chlorophyll content, yield parameters and nutrients of three varieties of cowpea (Vigna unguiculata (L.) Walp)
    (Science World Journal, 2025) Olayinka B. U.; Ogungbemi, R. F.; Babatunde, M. O.; Mahmud, H. U.; Ogundare, K. O.
    Cowpea (Vigna unguiculata L.), is a vital crop in sub-Saharan Africa, that contributes significantly to nutrition, food security, and income generation. The varieties abound vary in the bio-productivity and nutritional status, hence the need to evaluate the agronomic performance and nutritional value of the three newly improved cowpea varieties (Sampea 11, Sampea 12, and Sampea 15) that are cultivated in the Northern Savanna zone of Nigeria. In this study, growth parameters chlorophyll content, and yield components were assessed. Additionally, proximate and mineral analyses which provided insights into the nutritional profiles of these varieties were also investigated. Results identified Sampea 15 as the superior variety, in terms of chlorophyll content, seed weight, protein, fat, energy value, sodium, phosphorus, zinc and manganese. These findings underline the potential of Sampea 15 to enhance food security and nutritional outcomes in West Africa, where malnutrition remains a significant challenge. Considering the superiority of Sampea 15 over all other varieties, there is a need for an agricultural extension officer to make this variety known to the farmers for cultivation in the Southern Guinea savanna ecological zone where the study was carried out.
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    Proximate and phytochemical compositions of leaf and root (cattle stick) Carpolobia lutea G.Don
    (Journal of Applied Sciences and Environmental Management, 2019) Olayinka B. U.; Ogungbemi, R. F.; Abinde, O. O.; Lawal, A. R.; AbdulRahaman, A. A.; Etejere, E. O.
    Carpolobia lutea is a medicinal plant commonly utilized in Nigeria to boost libido. The ethnomedicinal importance of any plant lies in some secondary metabolites. Hence, the present study was carried out to investigate the proximate and phytochemical composition of roots and leaves of this plant using standard methods. The proximate composition of leaves and roots showed moisture, ash, fibre, protein, fat and carbohydrate contents with values that ranged between 8.84-9.55, 3.48-3.65, 1.10-1.06, 6.64-8.39, 1.80-1.80 and 76.16-77.47% respectively. The leaves contained higher amount of ash, crude protein and fat than the roots. The results of ethanolic extracts showed the presence of alkaloids, anthraquinones, steroids, saponins, tannins, phenols, terpenoids, anthocyanin, carotenoids and flavonoids in both the leaves and roots. These phytochemicals were found to be significantly higher in roots except for anthraquinones, flavonoids and steroids which were significantly higher in the leaves. Among the phytochemicals, alkaloids were found to be highest in concentration followed in decreasing order by saponins, steroids, tannins, flavonoids, anthraquinones, anthocyanin, terpenoids, phenols and carotenoids. The results indicated that, C. lutea leaf and root have high nutritive and medicinal values and this could be explored for pharmaceutical purposes.