Comparative Study of Mineral Composition of Some Selected Nigerian Green Leafy Vegetables from Two Different Regions

Main Article Content

A. A. Oladejo
O. A. Apalowo
S. Mustapha
A. S. Aliyu
O. T. Ilesanmi
A. A. Fatoyinbo


Vegetable often mean an edible part of a plant other than a sweet fruit or seed, which typically implies the leaf, stem or root of a plant. This study was carried out to evaluate the contributions of Nigerian leafy vegetables to nutrition and health. The mineral composition of four selected green leafy vegetables; water leaf(Talinum triangulare), fluted pumpkin (Telfaria occidentalis), bitter leaf (Vernonia amygdalina) and ukazi (Gnetum africanum) from two different locations (Awka in Anambra State and Ado-Ekiti in Ekiti State) were investigated. The result of the experiment showed that the mineral content of the investigated vegetables are not significantly different by (p<0.05). Generally, Gnetum africanum sourced from Awka has the highest content of all the explored minerals with magnesium content being highest (245.96±0.33).  The result indicated that the four investigated green leafy vegetables from these locations are good sources of minerals with Gnetum africanum having the highest content. Hence, the consumption of Gnetum africanum should be encouraged owing to its high content of minerals.

Green leafy vegetable, mineral, southeast, southwest.

Article Details

How to Cite
Oladejo, A. A., Apalowo, O. A., Mustapha, S., Aliyu, A. S., Ilesanmi, O. T., & Fatoyinbo, A. A. (2019). Comparative Study of Mineral Composition of Some Selected Nigerian Green Leafy Vegetables from Two Different Regions. Asian Journal of Advances in Agricultural Research, 11(3), 1-5.
Original Research Article


Sheela K, Kamal GN, Vijaylaksmi D, Geeta MY, Roopa BP. Proximate Analysis of Underutilized Green Leafy Vegetables in Southern Karmalaka. J. Human Ecol. 2004;15(3):227-229.

Nnamani CV, Oselebe HO, Agbatutu A. Assessment of nutritional values of three underutilized indigenous leafy vegetable of Ebonyi State,Nigeria. Afr. J. Biotechnol. 2009;8:2321-2324.

Akindahunsi AA, Salawu SO. Photochemical screening, nutrient and anti-nutrient composition of selected tropical green vegetables. Afr. J. Biotechnol. 2005;4:497-501.

Fasuyi AO. Nutritional potentials of some tropical vegetable meals. Chemical characterization and functional properties. Afr. J. Biotechnol. 2006;5(1):49-53.

Taiwo AA, Agbotoba MO, Oyedepo JA, Shobo AA, Oluwadara I, Olawuro MO. Effect of processing on Proximate Composition and Mineral Contents of Selected Indigenous Soup-Vegetable of Akwa Ibom. African J. Food and Dev. 2007;7:1-18.

Adenipekun CO, Oyetunji OJ. Nutritional Values of some tropical vegetables. J. Applied Biosci. 2010;35:2294-2300.

Oladejo AA, Okesola MA, Oyerinde AS, Jaiyesimi KF, Kolawole JA. Evaluation of Goitrogenic Content of Common Vegetables in South West Nigeria. Asian Food Science Journal. 2018;4(1):1-6.

George PM. Encyclopedia of Foods. Humane Press, Will Behington. 2003; 1:526.

Hanif RZ, Igqbal M, Iqba S, Hanif S, Rasheed M. Use of vegetable as nutritional food: Role in Human Health. J. Agric. and Biol. Sci. 2006;1:18-28.

Odedeji JO, Akande EA, Oladele AK, Adebayo-Oyetaro AO. Chemical Attributes and Consumer Acceptability of Blends of Fruit Juices from African Star Apple (Chrysophywum albidum) and Mango (Mangifera indica). J. Applied Sci. 2007; 10(4):7353–7363.

Ajayi OB, Bamidele TJ, Malachi OI, Oladejo AA. Comparative Proximate, Minerals and Antinutrient Analysis of Selected Nigerian Leafy Vegetables. J. Applied Life Sci. Intl. 2018;16(1):1-8.

Akubugwo IE, Obasi NA, Chinyere GC, Ugbogu AE. Nutritional and chemical value of Amaranthus hybridus L. leaves from Afikpo, Nigeria. Afri. J. Biotechnol. 2007; 6(24):2833-2839.

Mephba HD, Eboh L, Banigo EB. Effect of processing treatment on the nutritive composition and consumer acceptance of some Nigeria edible leafy vegetables. Afri. J. Food Agric Nutr. and Dev. 2007;7(1): 23-26.

Sobukola OP, Dairo OU, Odunewo AV, Fafiolu RO. Thin-Layer drying process of some leafy vegetables under open sun. Food Sci. and Technol. 2007;13(1):35-40.

Mohammed MI, Sharif N. Mineral composition of some leafy vegetables consumed in Kano, Nigeria. Nig. J. Basic and Appl. Sci. 2011;19(2):208-211.

Fayemi PO. Nigerian Vegetables. Heinemann Educational Books, Nigeria. 2000:1-8.

AOAC. Official Methods of Analysis, Association of Official Analytical Chemists (17th edition), Washington D.C; 2000.

Wester PO. Magnesium. Am. J. Clin. Nutr. 2007;45(5):1305–12.

Panel on Dietary Reference Intakes for Electrolytes and Water (PDRIEW). Standing Committee on the Scientific Evaluation of Dietary Reference Intakes, Food and Nutrition. DRI, dietary reference intakes for water, potassium, sodium, chloride, and sulfate. Washington, D.C.: National Academies. 2005;309-349.

Whelton PK, He J, Cutler JA, Brancati FL, Appel LJ, Follmann D, Klag MJ. Effects of oral potassium on blood pressure. Meta-analysis of randomized controlled clinical trials. J. Am. Med. Assoc. 1997; 277(20):1624-32.

Anderson EN. Everyone eats: Understanding food and culture. New York: New York University Press. 2005; 47–8.

FNB. Dietary Reference Intakes: Water, Potassium, Sodium, Chloride, and Sulfate. Food and Nutrition Board. Institute of Medicine, United States National Academies; 2004.

Geleijnse JM, Kok FJ, Grobbee DE. Impact of dietary and lifestyle factors on the prevalence of hypertension in Western populations. Eur. J. Pub. Health. 2004; 14(3):235-239.

Bales CW, Ritchie CS. Handbook of Clinical Nutrition and Aging. Springer. 2009;151.

Hussain J, Rehman NU, Khan AL, Hamayun M, Hussain SM, Shinwari ZK. Proximate and essential nutrients evaluation of selected vegetables species from Kohat region, Pakistan. Pak. J. Bot. 2010;42(4):2847-2855.

Oladejo Afees Adebayo. Comparative Vitamin Analysis of Some Selected Nigerian Green Leafy Vegetables from Two Different Zones. Acta Scientific Nutritional Health. 2019;3(11):15-18.