Assessment of Some Minerals and Proximate CompositionOf Selected Vegetables Grown ‎Around GwaigwayeDam in Katsina State, Nigeria

  • Authors

    • Aminu Mustapha Department of pure and industrial Chemistry, Faculty of physical Science ‎ Bayero University, Kano, Nigeria
    • Abdulhamid Dahiru Department of Chemistry, Federal University, Dutsinma
    https://doi.org/10.14419/rq7vz325

    Received date: December 16, 2025

    Accepted date: February 15, 2026

    Published date: February 18, 2026

  • Cabbage; Dam; Lettuce; Minerals; Moringa Oleifera and Proximate

  • Abstract

    This study evaluated the mineral and proximate composition of cabbage, lettuce, and Moringa oleifera cultivated near Gwaigwaye Dam to assess their nutritional value and safety for human consumption. Mineral concentrations of calcium, potassium, iron, and zinc were determined using Atomic Absorption Spectroscopy, while proximate parameters including protein, fiber, ‎lipid, ash, carbohydrate, and moisture were analyzed following standard AOAC procedures. Mineral contents (mg/100 g) ranged from 198.00–245.90 for calcium and potassium, 17.66–26.50 for iron, and 1.32–2.10 for zinc. The Ca: K ratios varied from 0.84 in cabbage to 1.00 in Moringa oleifera, indicating a balanced calcium–potassium relationship, while Fe: Zn ratios ranged from 9.75 in lettuce to 20.08 in Moringa, showing a predominance of iron relative to ‎zinc. Proximate composition (%) ranged from 7.40–17.44 for protein, 17.43–32.88 for fiber, 4.90–5.30 for lipid, 4.42–10.46 for ash, 21.10–43.40 for carbohydrate, and 2.70–9.00 for moisture. The results demonstrate that the vegetables are nutrient-dense, with variations ‎among samples that were statistically significant (p > 0.05). Favorable Ca: K ratios might ‎support bone health, cardiovascular regulation, and electrolyte balance, whereas elevatedFe: Zn ratios suggest the need for dietary strategies to enhance zinc bioavailability‎.

  • References

    1. M.I., Mohammed, N., Kabir, A., Mustapha, Comparative Study on some mineral compositions of seeds extract of Cassia Occidentalis, Ocimum gratissum and Senna tora obtained from Kafur local government Area of Katsina State, Nigeria. International Journal of Scholarly and Educational Research, 13(2024),13-23.
    2. J.R., Dhellot, E., Matouba, M.G., Maloumbi, J.M., Nzioku, D.G., Safou-Ngaoma, M., Linderon, S., Desobrys, M., Parmentier, Extraction, Chemical composition and nutritional characteristics of vegetable oil; A case study of Amaranthus hybridus(val1and2) of congo brazeville. Afr. J. Biotechnol, 2006 5(2006),1095-1101.
    3. Z.N., Ali, F.M., Abdulkadir, M.M., Imam, Determination of some heavy metals in spinach and lettuce from selected markets in kaduna metropolis. Nigerian Journal of chemical research, 17(2012),23-29.
    4. D.,Kumar, S., Kumar, C., Shekhar,Nutritional components in green leafy vegetables.Journal of pharmacognosy and phytochemistry 9(2020),2498-2502.
    5. N.A., Aduke, K.A., Ekowe, Proximate and mineral composition of five leafy vegetables commonly consumed in ogun state. In the proceeding of international conference held on 9th-10th december, 2020.
    6. N.S., Chauhan, Medicinal and Aromatic plants of himachal pradesh. Indus pub.co. New delhi: wealth of india. A dictionary of raw materials and industrialn products, publiction and information directorate C.S.I.R.2020 1(2020),368-370
    7. A., Delgado, M., Issaoui, M., Vieira, I., Saraiva de Carvalho, A., Fardet, Food Composition Databases: Does It Matter to Human Health?. Nutrients, 13(2021), 2816. https://doi.org/10.3390/nu13082816.
    8. N., Lawal, M.I., Nafiu, T.S., Kuiwa, A.M., Aminu, Phyto-plankton Population in Relation to physiccochemical parametres of Gwaigwaye Rresevoir Katsina state, Nigeria.J. Appl. Sci. Environ. Manage 24(2020),73-78. https://doi.org/10.4314/jasem.v24i1.10.
    9. C.E., Achikanu, C.E., Eze- steven, P.E., Ude, C.M., Ugwuokoie, Determination of vitamin and mineral composition of common leafy vegetables in south eastern Nigeria. Int J. Curr. Microbiol. Appl Sci, 2013 2(2013),347-353.
    10. A., Mustapha, A., Dahiru, K. R.,Zainab, Determination of some heavy metals in some vegetables grown around Gwaigwaye dam, Katsina state, Nigeria. 12(2024),67-70. https://doi.org/10.14419/kbwp8v23.
    11. AOAC, (2005). Official methods of Analysis of the Analytical chemist 18th edition, Washington D.C. U.S.A.
    12. FAO/WHO. (2004). Vitamin and mineral requirements in human nutrition (2nd ed.). Geneva: World Health Organization.
    13. K.O., Soetan, C.O., Olaiya, O.E., Oyewole, you the importance of mineral elements for humans, domestic animals and plants: A review. African Journal of Food Science, 4(2010),200–222.
    14. I.I., Nkafamiya, S.A., Osemeahon, U.U., Modibbo, A., Aminu, Nutritional status of non-conventional leafy vegetables consumed in Mubi, Nigeria. African Journal of Food Science, 4(2010), 104–108.
    15. M.G., Mokganya, L.R., Motadi, M.A., Selepe, . Mineral composition and nutritional potential of Moringa oleifera leaves grown in Botswana. Food Production, Processing and Nutrition, 5(2023), 1–10. https://doi.org/10.1186/s43014-023-00183-8.
    16. L., Gopalakrishnan, K., Doriya, D.S., Kumar, Moringa oleifera: A review on nutritive importance and its medicinal application. Food Science and Human Wellness, 5(2016) 49–56. https://doi.org/10.1016/j.fshw.2016.04.001.
    17. A., Aberoumand, S.S., Deokule, Determination of elements profile of some wild edible plants. Food Analytical Methods, 2(2009), 116–119. https://doi.org/10.1007/s12161-008-9057-9.
    18. United States Department of Agriculture (USDA). FoodData Central. U.S. Department of Agriculture, Agricultural Research Service. https://fdc.nal.usda.gov,2019.
    19. B.A., Akinwande, S.J., Olatunde, Comparative evaluation of mineral composition of some leafy vegetables consumed in Jos, Plateau State, Nigeria. International Journal of Science and Research, 4(2015), 143–147.
    20. M.C., Martínez-Ballesta, R., Dominguez-Perles, D.A., Moreno, B., Muries, C., Alcaraz-López, E., Bastías, C., García-Viguera, M., Carvajal, (Minerals in plant food: Effect of agricultural practices and role in human health. Agronomy, 11(2021), 1–21. https://doi.org/10.3390/agronomy11040684.
    21. T.A., Oyewale, O.N. Oyewale, A.E. Falodun, Cassia fistla seeds nutritional profile and therapeutic potentials. Insight in chemistry and biochemistry 2022, 2(2022),1-7
    22. O.A., Babatunde, D.O., Ojo, D.F., Adewumi, Evaluation of mineral elements in selected vegetables cultivated in Ekiti State, Nigeria. International Journal of Agriculture and Environmental Research, 5(2019), 45–53.
    23. O.B. Ajayi, T.J., Bamidele, O.I. Malachi, A.A. Oladejo, Comparative proximate minerals and anti nutrient analysis of selected nigerian leafy vegetables. Journal of Applied life sciences international, 16(2018),1-8. https://doi.org/10.9734/JALSI/2018/26666.
    24. S.J., Olatunde, B.A., Akinwande, O., Ogunyemi, Proximate and mineral composition of leafy vegetables sold in Jos North Local Government Area, Plateau State, Nigeria. International Journal of Nutrition and Food Sciences, 6(2017), 123–129. https://doi.org/10.11648/j.ijnfs.20170603.15.
    25. A., Ibrahim, B., Suleiman, H., Musa, Proximate composition of lettuce (Lactuca sativa) from Minna, Niger State, Nigeria. Journal of Food Science and Technology, 57(2020), 1453–1460.
    26. A.C., Akinmoladun, E.O., Ibukun, E., Afor, Mineral composition and nutritional evaluation of selected leafy vegetables consumed in Nigeria. Journal of Food Composition and Analysis, 96(2021),103735.
    27. M.S., Calvo, C., Lamberg-Allardt, T., Pham, Minerals in plant food: Effect of agricultural practices and role in human health. Agronomy, 11(2021), 1–21. https://doi.org/10.3390/agronomy11040684.
    28. Y., Zhang, X., Li, J., Wang, Q., Chen, Mineral accumulation and dietary contribution of leafy vegetables grown under different cultivation systems in China. Journal of Food Science, 87(2022), 4021–4032. https://doi.org/10.1111/1750-3841.16234.
    29. A., Abdullahi, M., Bello, I., Garba, Mineral composition of leafy vegetables consumed in Kano Metropolis, Nigeria. International Journal of Food Science and Nutrition, 3(2018), 45–52.
    30. M., Yusuf, A., Ibrahim, S., Aliyu, Nutrient profiling of leafy vegetables from Bauchi State, Nigeria. African Journal of Food Science, 13(2019), 98–104.
    31. C., Ogbunugafor, P., Nwankwo, C., Eze, Nutritional and mineral composition of leafy vegetables in Anambra State, Nigeria. Journal of Food Composition and Analysis, 90(2020), 103498.
    32. O., Adewumi, T., Ogunleye, A., Olawale, Nutrient and protein content of Moringa oleifera leaves in Oyo State, Nigeria. Journal of Food Science and Nutrition, 10(2020), 1–8.
    33. R., Singh, S., Sharma, P., Kaur, Mineral composition of commonly consumed leafy vegetables in India. Journal of Food Science and Technology, 57(2020); 3482–3490.
    34. W.,Abebe, T., Mekonnen, K., Desta, Nutritional evaluation and mineral composition of indigenous leafy vegetables in Ethiopia. Heliyon, 7(2021): e07033. https://doi.org/10.1016/j.heliyon.2021.e07033.
    35. L.F., Silva, R.A., Pereira, M. A., Costa, Iron and other mineral contents in commonly consumed leafy vegetables in Brazil. Food Chemistry, 367(2022); 130727. https://doi.org/10.1016/j.foodchem.2021.130727.
    36. M., Abubakar, A., Musa, H., Bello, Zinc concentration in leafy vegetables from Hunkuyi, Kaduna State, Nigeria: Influence of agricultural practices. International Journal of Food Science and Nutrition, 2(2017), 45–51.
    37. E.N., Onyeike, P.C., Ojimelukwe, Mineral composition of leafy vegetables sold in Kakuri Market, Kaduna State, Nigeria. African Journal of Food Science, 9(2015): 215–220.
    38. F.A., Oluwole, T.M., Adepoju, O.O., Oladipo, Zinc and other trace elements in leafy vegetables grown in Southern Nigeria. Journal of Food Composition and Analysis, 86(2020): 103378.
    39. C.N., Eze, E.C., Okoye, C.I., Chukwu, Nutritional evaluation of leafy vegetables in Enugu State, Nigeria. Food Science and Nutrition, 7(2019): 1934–1941. https://doi.org/10.1002/fsn3.1165.
    40. A.R., Bello, T.A., Lawal, K.S., Adeyemi, Mineral content of cabbage and lettuce cultivated in Lagos State, Nigeria. Journal of Nutrition and Food Sciences, 11(2021): 1–9.
    41. P., Sharma, R., Singh, S., Gupta, Zinc and other minerals in commonly consumed green leafy vegetables in India. Journal of Food Science and Technology, 57(2020):1498–1505.
    42. D., Tadesse, M., Bekele, K., Alemayehu, Nutritional and mineral composition of indigenous leafy vegetables in Ethiopia. Heliyon, 7(2021), e07790. https://doi.org/10.1016/j.heliyon.2021.e07790.
    43. M., Yildiz, H., Kaya, F., Demir, Zinc content and mineral composition of commonly consumed leafy vegetables in Turkey. Food Chemistry, 353(2021): 129487. https://doi.org/10.1016/j.foodchem.2021.129487.
    44. R., Rizzoli, J.Y., Reginster, J. F., , Arnal, I., Bautmans, C., Beaudart, H., Bischoff-Ferrari, J.A., Kanis, Nutritional intake and bone health. Osteoporosis International, 25(2014): 1–21.
    45. S., Sreelatha, P.R., Padma, (2009).Antioxidant activity and total phenolic content of Moringa oleifera leaves in two stages of maturity.Plant Foods for Human Nutrition, 64(2009);303–311. https://doi.org/10.1007/s11130-009-0141-0.
    46. P.N., Okafor, C.O., Eze, P.I., Nwankwo, Iron and zinc contents and Fe:Zn ratios of selected leafy vegetables cultivated in Benue State, Nigeria. African Journal of Food Science, 11(2017):65–72.
    47. M., Ibrahim, A., Musa, H., Lawal, (2019). Mineral composition and Fe:Zn ratios of leafy vegetables from Kaduna State, Nigeria. Journal of Nutrition and Food Sciences, 9(2019); 1–7.
    48. R., Patel, S., Sharma, A., Singh, . Iron and zinc content and Fe:Zn ratios in commonly consumed leafy vegetables in India. Journal of Food Science and Technology, 57(2020):1985–1993.
    49. T., Bekele, W., Abebe, T., Mekonnen, Mineral composition and Fe:Zn ratios of indigenous leafy vegetables in Ethiopia. Heliyon, 7(2021); e08123. https://doi.org/10.1016/j.heliyon.2021.e08123.
    50. R., González, M., Torres, F., Pérez, Mineral content and Fe:Zn ratios in local leafy vegetables consumed in Mexico. Food Chemistry, 260(2018):36–42. https://doi.org/10.1016/j.foodchem.2018.03.021.
    51. I.A., Onimawo, E.I., Akubugwo, Nutritional composition of selected leafy vegetables in Nigeria. African Journal of Food, Agriculture, Nutrition and Development, 12(2012);5689–5703.
    52. C.C., Okeke, C.N., Eze, C.O., Nwachukwu, Proximate composition of leafy vegetables cultivated in Enugu State, Nigeria. International Journal of Food Science and Nutrition, 3(2018), 89–95.
    53. J.K., Mensah, H., Amaglo, O.I., Oladele, E., Owusu, Nutritional composition of Moringa oleifera and commonly consumed leafy vegetables in Ghana. Journal of Food Composition and Analysis, 80(2019):1–8. https://doi.org/10.1016/j.jfca.2019.02.006.
    54. L.W., Wambui, P.N., Kamau, C.K., Mwangi, . Proximate analysis of leafy vegetables grown in central Kenya. African Journal of Food Science, 14(2020): 123–130. https://doi.org/10.5897/AJFS2020.1935.
    55. V., Chavasit, N., Rojroongwasinkul, S., Siriamornpun, Proximate and mineral composition of commonly consumed vegetables in Thailand. Food Chemistry, 229(2017);488–495. https://doi.org/10.1016/j.foodchem.2017.02.018.
    56. J. L., Slavin, B., Lloyd, Health benefits of fruits and vegetables. Advances in Nutrition, 3(2012), 506–516. https://doi.org/10.3945/an.112.002154.
    57. P., Kumar, S., Mishra, A., Malik, S., Satya, Nutritional and medicinal properties of Moringa oleifera: A review. Journal of Food Science and Nutrition, 8(2020);67–75.
    58. I.O., Akinyele, T. S., Olatunde, T. M., Adepoju, Proximate composition and nutrient evaluation of leafy vegetables in Ondo State, Nigeria. African Journal of Food Science, 12(2018); 103–110.
    59. A.I., Olagunju, A.A., Adebayo, O.O., Adeola, Nutritional evaluation of selected leafy vegetables consumed in Ekiti State, Nigeria. International Journal of Food Science and Nutrition, 4(2019);45–52.
    60. A.O., Abiodun, T.M., Ogunleye, K.S., Adeyemi, Nutritional quality and proximate composition of cabbage and lettuce sold in Lagos markets, Nigeria. Journal of Food and Nutrition Research, 8(2020);145–152.
    61. P.U., Rao, M.K., Devi, V.S., Reddy, Dietary fiber content of selected vegetables and their role in human nutrition. Food Research International, 105(2018);400–406.
    62. M.M., Rahman, M.A., Hossain, M.S., Islam, Nutritional composition of selected leafy vegetables available in Bangladesh. Journal of Food Composition and Analysis, 67(2018);14–20.
    63. H.S., El-Beltagi, A.A., Mohamed, G., Safwat, Evaluation of nutritional quality and antioxidant properties of Moringa oleifera leaves. Asian Journal of Biological Sciences, 12(2019); 151–159.
    64. J.W., Kamau, F.K., Mutua, S.N., Wambugu, Nutritional composition of Moringa oleifera and selected vegetables consumed in Kenya. African Journal of Food Science, 14(2020);274–281.
    65. A.A., Adebayo, A.I., Olagunju, O.O., Adeola, Proximate composition and crude fiber content of selected leafy vegetables consumed in southwestern Nigeria. Nigerian Journal of Nutritional Sciences, 42(2021);45–52.
    66. W., Chai, F., Li, H., Zhang, Proximate composition and fatty acid profile of selected leafy vegetables in China. Journal of Food Composition and Analysis, 49(2016):10–18. https://doi.org/10.1016/j.jfca.2015.12.006.
    67. S., Ghosh, A., Roy, S., Dey, Nutritional and proximate analysis of Moringa oleifera leaves in India: Effect of maturity on nutrient composition. Journal of Food Measurement and Characterization, 12(2018);2005–2012.
    68. S.R., Dewi, M.A., Sari, Nutritional evaluation of leafy vegetables in Indonesia: Proximate and lipid content analysis. Asian Journal of Food and Agro-Industry, 10(2017); 67–75.
    69. R.L., Smith, P.K., Johnson, T., Nguyen, Proximate and mineral composition of Moringa oleifera leaves grown in Florida, USA. Journal of Food Composition and Analysis, 62(2017); 34–40. https://doi.org/10.1016/j.jfca.2017.02.006.
    70. D., Johnson, S., Lee, Mineral and proximate composition of cabbage and lettuce in Ontario, Canada. Canadian Journal of Plant Science, 98(2018);1092–1098. https://doi.org/10.1139/cjps-2018-0123.
    71. M., Torres, C., Ramirez, J., Lopez, Nutritional analysis of Moringa oleifera leaves in Mexico: Ash and carbohydrate content. Journal of Food Quality, 42(2019); 25–32.
    72. A., Davis, H., Miller, K., Thompson, Proximate analysis of leafy vegetables grown in California, USA. Food Science and Nutrition, 8(2020); 3502–3509.
    73. L., Martin, J., Robertson, P., Clark, Nutrient composition of Moringa oleifera and other leafy vegetables cultivated in Quebec, Canada. Journal of Food Composition and Analysis, 97(2021);103727.
    74. F.A., Nguema, P., Mbougueng, M., Tchouanguep, Nutritional composition of cabbage cultivated in Cameroon: Proximate and mineral analysis. Journal of Food Composition and Analysis, 77(2019);45–52.
    75. P., Mbougueng, F.A., Nguema, M., Tchouanguep, Proximate analysis of lettuce (Lactuca sativa) cultivated in Central African Republic. African Journal of Agricultural Research, 15(2020); 347–353.
    76. F., Kalonji, J., Mukendi, D., Tshibangu, Nutritional profiling of Moringa oleifera leaves in the Democratic Republic of Congo. Food Science & Nutrition, 6(2018); 725–732. https://doi.org/10.1002/fsn3.615.
    77. F., Dupont, M., Bernard, J., Leroy, Proximate composition of cabbage cultivated in France. European Food Research and Technology, 243(2017);1425–1432.
    78. H., Fischer, K., Müller, S., Weber, Nutrient composition of lettuce varieties grown in Germany. Journal of Applied Botany and Food Quality, 91(2018); 120–126.
    79. G., Rossi, L., Bianchi, M., Conti, Proximate and carbohydrate composition of Moringa oleifera leaves grown in Italy. Journal of Food Composition and Analysis, 79(2019); 41–48. https://doi.org/10.1016/j.jfca.2019.03.002.
    80. O.A., Adeyemi, O.T., Omotoso, T., Fadeyi, Moisture content and proximate analysis of selected leafy vegetables in Ekiti State, Nigeria. Nigerian Journal of Nutrition Science, 40(2019);55–62.
    81. S., Miller, R., Brown, D., Wilson, Carbohydrate and nutrient content of leafy vegetables grown in California. Journal of Agricultural and Food Chemistry, 67(2019); 5920–5928.
    82. T., Roberts, M., Evans, G., Harrison, Proximate analysis and nutrient profiling of leafy vegetables in Ontario, Canada. Canadian Journal of Food Science, 103(2020); 502–510.
    83. P., Hernandez, R., Castillo, A., Flores,Proximate composition of commonly consumed leafy vegetables in Mexico. Food Chemistry, 239(2018); 123–130. https://doi.org/10.1016/j.foodchem.2017.06.045.
    84. S., Musa, I., Abdullahi, M.S., Bello, Nutritional evaluation of Moringa oleifera leaves from Kano State, Nigeria. African Journal of Food Science, 12(2018); 215–222.
    85. V., Reddy, S., Kumar, P., Sharma, Proximate composition of cabbage and lettuce grown in India. International Journal of Food Science and Nutrition, 68(2017); 841–847.
    86. R., Khan, S., Ahmed, M., Ali, Proximate analysis of Moringa oleifera leaves in Pakistan: Moisture and nutrient content. Pakistan Journal of Nutrition, 17(2018); 472–478.
    87. M.R., Islam, M.M., Hossain, M., Rahman, Nutrient composition of cabbage and lettuce cultivated in Bangladesh. Journal of Food Measurement and Characterization, 13(2019); 1204–1211.
    88. T.P., Nguyen, H.M., Le, H. Q.V., Tran, Proximate composition of leafy vegetables in Vietnam: Effects of climate and cultivation methods. Food Science & Nutrition, 8(2020):895–902. https://doi.org/10.1002/fsn3.1402.
    89. M., Ali, M., Sajad, N., Akhtar, Nutritional and mineral composition variability among selected leafy vegetables. Journal of Food Composition and Analysis, 82(2019),103231. https://doi.org/10.1016/j.jfca.2019.06.003.

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    Mustapha, A., & Dahiru, A. (2026). Assessment of Some Minerals and Proximate CompositionOf Selected Vegetables Grown ‎Around GwaigwayeDam in Katsina State, Nigeria. International Journal of Health, 13(1), 9-16. https://doi.org/10.14419/rq7vz325