Phytochemical sreening, proximate analysis and mineral composition of some leafy vegetables consumed in Nigeria

  • Authors

    • Owoicho Idoko SHEDA SCIENCE AND TECHNOLOGY COMPLEX, ABUJA, NIGERIA.
    • Stella Emmanuel SHEDA SCIENCE AND TECHNOLOGY COMPLEX, ABUJA, NIGERIA.
    • Ooyinye Aguzue SHEDA SCIENCE AND TECHNOLOGY COMPLEX, ABUJA, NIGERIA.
    • Akanji Fausat SHEDA SCIENCE AND TECHNOLOGY COMPLEX, ABUJA, NIGERIA.
    • Ifeanyi Osuagwu SHEDA SCIENCE AND TECHNOLOGY COMPLEX, ABUJA, NIGERIA.
    • Thomas Asuquo SHEDA SCIENCE AND TECHNOLOGY COMPLEX, ABUJA, NIGERIA.
    2014-10-14
    https://doi.org/10.14419/ijac.v2i2.3514
  • Abstract

    Phytochemical screening, proximate analysis and mineral composition of nine leafy vegetables; Teifaria occidentalis, Veronia amygdalina, Ocinum gratissimum, Corchorus olitorius, Piper guineese, Amaranthus hybridus Talinum triangulare, Gnetum africanum and Murraya koenigii was carried out using standard methods. The proximate analysis results showed that the moisture, ash, crude lipid, crude fibre, crude protein and carbohydrate ranged as followed; 10.20 to 15.17%, 6.65 to 28.33%, 1.44 to 11.29%, 0.52 to 2.33% 2.24 to 35.21% and 22.66 to 62.80% respectively. The mineral composition results showed that on the average, highest concentration of calcium was recorded in the range of 838 to 1258mg/100g, while Cr was found to be the least with concentration range of 0.19 to 0.48mg/100g. Cd was absent in all the samples. The phytochemical screening results also showed the presence of tannin, alkaloids and carbohydrate in all the leafy vegetables. The result of this study indicates that the leafy vegetables could be a good supplement for some the nutrients and elements analyzed.

    Keywords: Leafy Vegetables, Mineral Composition, Phytochemicals, Proximate Analysis.

  • References

    1. Mepba HD, Eboh L & Banigo DEB (2007) Effects of processing treatments on the nutritive composition and consumer acceptance of some Nigerian edible leafy vegetables.Afri. J. Food Agri. Nutri. Dev.; 7(1), 1684-5374.
    2. AOAC (1999) Official methods of analysis Association of official analytical chemists. 21st ed. Washington D.C. USA.
    3. Pearson D (1976) Chemical analysis of food.7th ed. Churchill, London 7-11.
    4. Sofowora A (1993) Medical plants and traditional medicine in Africa. Spectrum Books Ltd., Ibadan, Nigeria 289.
    5. Iheanacho K & Ubebani AC (2009) Nutritional composition of some leafy vegetable consumed in Imo State, Nigeria. J. Appl. Sci. Environ Manage. 13(3), 35-38.
    6. Antia BS, Akpan EJ, Okon PA & Umoren IU (2006) Nutritive and anti-nutritive evaluation of sweet Potatoes (Ipomoea batatas) leaves. Pak. J. Nutri. 15, 166-168.
    7. Asaolu SS, Adefemi OS, Oyakilome IG, Ajibulu KE & Asaolu (2012) MF Proximate and mineral composition of Nigerian leafy vegetables. J. Food Res. 1(3), 214-218. http://dx.doi.org/10.5539/jfr.v1n3p214.
    8. Taiga A, Suleiman MN, Aina DO, Sule WF & Alege GO (2008) Proximate analysis of some dry season vegetables in Ayigba, Kogi State, Nigeria. Afri. J. Biotechnol. 7(10), 1588-1590.
    9. Rao CV & Newmark HL (1998) Chemo-preventive effect of squalene on colon cancer. Carcinogenesis. 19, 287-290. http://dx.doi.org/10.1093/carcin/19.2.287.
    10. Roger P, Elie F, Rose L, Martin F, Jacob S, Mercy AB & Felicia MT (2005) Methods of preparation and nutritional evaluation of dishes consumed in a malaria endemic zonein Cameroon (Ngali II). Afri. J. Biotechnol. 4(3), 273-278.
    11. FND (2002) Dietary reference intake for energy, carbohydrate, fibre, fats, fatty acids cholesterol, protein and amino acid (micronutrients). National Acedemy of Science, USA.
    12. Iniaghe OM, Malomo SO & Adebayo JO (2009) Proximate composition and phytochemical constituents of leaves of some Acalypha species. Pak. J. Nutri. 8(3), 256-258. http://dx.doi.org/10.3923/pjn.2009.256.258.
    13. Oko AO (2012) Nutritional and phytochemical composition of the leaves of Mucuna poggei. J. Biol Life Sci. 3(1), 232-242. http://dx.doi.org/10.5296/jbls.v3i1.2218.
    14. Okwu DE (2001) Evaluation of the chemical of indigenous spices and flavouring agents. Global J. Pure Appl. Sci. 7, 455-459.
    15. Genderd R (1994) Scented flora of the world. Robert Hale. London.
    16. Radwan MA & Salama AK (2006) Market basket survey for some heavy metals in Egyptian fruits and vegetables. Food Chemistry and Toxicology. 44, 1273-1278. http://dx.doi.org/10.1016/j.fct.2006.02.004.
    17. Soylak M, Tuzen M, Narin I & Sari H (2003) Comparison of microwave dry and wet digestion procedures for the determination of trace metal contents of spice produced in Turkey. J. Food Drug Anal. 12: 254-258.
    18. Anyoola PB, Adeyeye a & Onawumi OO (2010) Trace element and major evaluation of Spondias mombin, Veronia amygdalina and Momordia charantia leaves. Pak. J. Nutri. 9(8), 755-758. http://dx.doi.org/10.3923/pjn.2010.755.758.
    19. Mohammed MI & Sharif N (2011) Mineral composition of some leafy vegetables consumed in Kano, Nigeria. Nigerian Journal of Basic and Applied Sciences. 19(2), 208-212.
    20. Dioxon BM & Haris EM (2004) Nigeria food consumption and nutrition survey. 2001-2003
    21. FAO/WHO (2002) Report of a joint FAO/WHO. Expert consultation on human vitamin and mineral requirements. Expert Consultation, Bankok, Thailand. 223-229.
    22. Barminas JT, Charles M & Emmanuel D (1998) Mineral composition of non-conventional leafy vegetables. Plant Foods for Human nutrition. 53: 29-36. http://dx.doi.org/10.1023/A:1008084007189.
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  • How to Cite

    Idoko, O., Emmanuel, S., Aguzue, O., Fausat, A., Osuagwu, I., & Asuquo, T. (2014). Phytochemical sreening, proximate analysis and mineral composition of some leafy vegetables consumed in Nigeria. International Journal of Advanced Chemistry, 2(2), 175-177. https://doi.org/10.14419/ijac.v2i2.3514

    Received date: 2014-09-02

    Accepted date: 2014-09-28

    Published date: 2014-10-14