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Determination of the ascorbic acid content, mineral and heavy metal levels of some common leafy vegetables of Jos, Plateau State (North Central Nigeria)

By: Dalen Gwatau Dafam, Abdulkarim Agunu, Adama Dénou, Daniel Christopher Kagaru, Temitayo Lucia Ohemu, Ukpe Ajima, Josephine Nanle Damos, Victoria Akpidi Okwori

Key Words: Leafy vegetables, Vitamin C, Elemental and heavy metal, Nigeria.

Int. J. Biosci. 16(3), 389-396, March 2020.

DOI: http://dx.doi.org/10.12692/ijb/16.3.389-396

Certification: ijb 2020 0057 [Generate Certificate]

Abstract

Vitamin C (Ascorbic acid) is the most important vitamin in fruits and vegetables. It is required for the prevention of scurvy and maintenance of healthy skin, gums and blood vessels. It functions in absorption of inorganic iron, reduction of plasma cholesterol level, inhibition of nitrosamine formation, enhancement of the immune system, and reaction with free radicals. Therefore Vitamin C and elemental analysis of some local leafy vegetables namely; Pumpkin leaves, Jute leaves, Bitter leaf, Cubeb leaves, Bush buck leaves, Clove basil leaves, Curry leaf, Water leaf, African Eggplant and Moringa leaves were performed. Vitamin C determination was carried out on fresh leaves using UV spectrophotometry. Element analysis was performed on dried samples using atomic spectrophotometer for readings. The vitamin C content of the samples ranged from 5.70 mg/100 ml to 815.00 mg/100 ml. Elemental analysis showed that the leafy vegetables possessed calcium content ranging from 11.50 mg/100 ml to 830.00 mg/100 ml; potassium content ranged from  2.26 mg/100 ml to 2814.15 mg/100 ml; magnesium content ranged from  29.46 mg/100 ml  to 677.0 mg/100 ml; sodium content ranged from 0.21 mg/100 ml to 370.0 mg/100ml and phosphorus content ranged from 5.00 mg/100mlto 600.00 mg/100 ml. Lead was absent in the samples but some contained traces of cadmium. These findings revealed that Nigerian leafy vegetables contain an appreciable amount of vitamin C and minerals with traces of toxic elements. However, they should be included in diets to supplement the daily requirement needed for sustainable health.

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Determination of the ascorbic acid content, mineral and heavy metal levels of some common leafy vegetables of Jos, Plateau State (North Central Nigeria)

Achikanu CE, Eze-Steven PE, Ude CM, Ug OC. 2013. Determination of the vitamin and mineral composition of common leafy vegetables in south eastern Nigeria. International Journal of Current Microbiology and Applied Sciences 2(11), 347-353.

Bender DA. 2009. Nutritional biochemistry of vitamins. 2nd edition. Cambridge University Press.

https://doi.org/10.1017/CBO9780511615191

Bolger M, Carrington C, Larsen JC, Petersen B. 2000. Safety evaluation of certain food additives and contaminants. Lead. WHO Food Additive Series 44, 212–273.

Choi CJ, Kanthasamy A, Anantharam V, Kanthasamy AG. 2007. Interaction of metals with prion protein: possible role of divalent cations in the pathogenesis of prion diseases. Neurotoxicology 27, 777-87.

Duran A, Tuzen M, Soylak M. 2007. Trace element levels in some dried fruit samples from Turkey. International Journal of Food Science and Nutrition 59, 581–589.

El-Bassel HA, El-Gazzar HH. 2019. Comparable study between organic and nonorganic vegetables in their contents of some nutritive components. Journal of Medicine in Scientific Research 2, 204-8.

Fasuyi AO. 2006. Nutritional potentials of some tropical vegetables meals. Chemical characterization and functional properties. African Journal of Biotechnology 5(1), 49-53.

Fenell D. 2004. Determinants of Supplement Usage. Preventive Medicine 5, 932-939.

Goldhaber SB. 2003. Trace element risk assessment: essentially vs. toxicity. Regulatory Toxicology and Pharmacology 38, 232–242.

Ihekoronye AI, Ngoddy PO. 1985. Integrated Food Science and Technology for the Tropics. Macmillan Publishers, New York, 296-301.

Johnson LJ, Susan M, Laura JK. 2003. The Antioxidants-Vitamin C, Vitamin E, Selenium, and Carotenoids. Journal of Agromedicine 9(1), 65-82.

Kaviarasan S, Ramamurty N, Gunasekaran P, Varalakshmi E, Anuradha CV. 2007. Fenugreek (Trigonellafoenumgraecum) seed extract prevents ethanol-induced toxicity and apoptosis in Chang liver cells. Alcohol & Alcoholism 41(3), 267-73.

Kurl S, Tuomainen TP, Laukkanen JA. 2002. Plasma vitamin C modifies the association between hypertension and risk of stroke. Stroke 33, 1568–73.

Mepha HD, Eboh L, Banigo DEB. 2007. Effects of processing treatments on the nutritive composition and consumer acceptance of some Nigeria edible leafy vegetables. African Journal of food Agriculture, Nutrition and Development 7(1), 1-18.

Milton K. 2003. Micronutrient intakes of wild primates: are humans different. Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 136(1), 47-59.

Mohammed MI, Sharif N. 2011. Mineral composition of some leafy vegetables consumed in Kano, Nigeria. Nigerian Journal of Basic and Applied Sciences 19(2), 208-211.

Odugbemi T. 2008. A Textbook of Medicinal Plants from Nigeria. University of Lagos Press, Lagos, 542.

Ononugbu IC. 2002. Lipids in Human Existence. 1st Edition. Express Publishing Company, Nsukka, Nigeria, 115.

Padayatty SJ, Katz A, Wang Y, Eck P, Kwon O, Lee JH, Chen S, Corpe C, Dutta A, Dutta SK, Levine M. 2003. “Vitamin C as an antioxidant: evaluation of its role in disease prevention”. Journal of the American College of Nutrition 22(1), 18–35.

Radwan MA, Salama AK. 2006. Market basket survey for some heavymetals in Egyptian fruits and vegetables. Food and Chemical Toxicology 44, 1 273-1 278.

Rekha C, Poornima G, Manasa M, Abhipsa V, Pavithradevi J, Vijay kumar HT, Prashith KTR. 2012. Ascorbic Acid, Total Phenol Content and Antioxidant Activity of Fresh Juices of Four Ripe and Unripe Citrus Fruits.Chemical Science Transactions 1(2), 303-310.

Sanchez-Castillo CP, Dewey PJS, Aguirre A, Lara JS, Vaca R, de la Barra PL. 1998. The mineral content of Mexican fruits and vegetables. Journal of Food Composition and Analysis 11, 340–356.

Sathawara NG, Parikh DJ, Agarwal YK. 2004. Essential heavy metals in environmental samples from western India. Bulletin of Environmental Contamination and Toxicology 73, 756–761.

Sobukola OP, Dairo OU, Odunewu AV, Fafiolu BO. 2007. Thin layer drying process of some leafy vegetables under open sun. Journal of Food Science and Technology 13(1), 35-40.

Sobukola OP, Adeniran OM, Odedairo AA, Kaj OE. 2010. Heavy metal levels of some fruits and leafy vegetablesfrom selected markets in Lagos, Nigeria. African Journal of Food Science 4(2), 389 – 393.

Steenland K, Boffetta P. 2000. Lead and cancer in humans: where are we now? American Journal of Industrial Medicine 38, 295–299.

Tuzen M, Soylak M. 2007. Evaluation of trace element contents in canned foods marketed from Turkey. Food Chemistry 102, 1089–1095.

United States National Academy of Sciences (USNAS). 2013.

http://nasonline.org/pub/2013/rda.

Yen JL, Su NY, Kaiser P. 2005. The yeast ubiquitin ligase SCFMet30 regulates heavy metalresponse. Molecular Biology of the Cell 16(4), 1872-82.

Zaidi MI, Asrar A, Mansoor A, Farooqui MA. 2005. The heavy metal concentrations along road side’s trees of Quetta and its effects on public health. Journal of Applied Sciences 5(4), 708-711.

Zheljazkov VD, Craker LE, Xing B. 2006. Effects of Cd, Pb, and Cu on growth and essential oil contents in dill, peppermint, and basil. Environmental and Experimental Botany 58, 9–16.

Dalen Gwatau Dafam, Abdulkarim Agunu, Adama Dénou, Daniel Christopher Kagaru, Temitayo Lucia Ohemu, Ukpe Ajima, Josephine Nanle Damos, Victoria Akpidi Okwori.
Determination of the ascorbic acid content, mineral and heavy metal levels of some common leafy vegetables of Jos, Plateau State (North Central Nigeria).
Int. J. Biosci. 16(3), 389-396, March 2020.
https://innspub.net/ijb/determination-ascorbic-acid-content-mineral-heavy-metal-levels-common-leafy-vegetables-jos-plateau-state-north-central-nigeria/
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