Antioxidant Assay and Flavonoids of Rind and Seed of Citrullus lanatusl linn (Water Melon)
Keywords:Citrullus lanatus L, flavonoid, antioxidant, level of concentration
Authors: Abdulazeez, A. Usman, S. Audu, I. L Ibrahim, S. I. Kwokwu, .M. T. Umar, J. Babatunde & . A. Uthman
Received 17 March 2020/Accepted 01 April 2020
This work was designed to determine the level of antioxidant and flavonoids in rind and seed of Citrullus lanatus L. Samples were collected from various farm including Cecce, Ibrahim Badamasi Babangida University main gate and Gidan gwari farm then were. Results obtained indicated flavonoid concentration in the rind as (174.41±0.02, 174.34±0.12, 173.78±0.00 and 174.56±0.00) mg/100g while those of seed were (156.79±0.01, 151.41±0.00, 154.12±0.04 and 153.00±0.02)mg/100g. However, antioxidant assay indicated the following concentration for rind samples collected from different farms (26.04±0.01, 23.81±0.02, 25.39±0.16 and 26.31±0.15)%DPPH while in the seed, the assay gave (36.89±0.41, 38.19±0.03, 35.24±0.02 and 38.73±0.21) %DPPH. Therefore, Citrullus lanatus rind may provide considerable medicinal, health and economic benefits if freshly consumed or utilized in food products and also supplementing human nutrition requirements for normal growth and adequate protection against defects associated to the malnutrition.
Abdulazeez, A., Abdullahi, U., Audu, S. S., Ibrahim, I., Kwokwu, S. I., Gimba, A., Umaru, M. T. 1., Babatunde, J,.& Uthman, A. (2020). Proximate Composition of rind and seed of watermelon (Citrullus lanatus L). African Journal of Environment and Natural Science Research, 3,1, pp.24-31.
Alaekwe, I. O. & Mojekwu, O. E. (2013). Proximate composition and utilization of Napoleona imperialis fruits. Journal of Natural Sciences Research, 3, 6, pp.160-169.
Amaechi, N.C. (2009). Nutritive and anti-nutritive evaluation of Wonder kola (Buccholziacoricea) seeds. Pakistan Journal of Nutrition, 8, 8, pp. 1120-1122.
Anthony, C. E. (2015). Comparative Assessment of some Mineral, Amino Acid and Vitamin Compositions of Watermelon (Citrullus lanatus) Rind and Seed: Asian Journal of Biochemistry, 10, pp. 230-236.
AOAC, (1990). Official Methods of Analysis, In: Association of Official Analytical Chemists, AOAC Press; Gaithersburg, Washington D.C, USA. 15th Edition; pp. 71 – 92.
Baum, F. (2007). Health for all now. Reviving the spirit of Alma Ata in the twenty first century. An introduction to Alma Ata declaration. Social Medicine,2,1, pp. 31-34.
Betty, T.,, Jacob, K. Agbenorhevi, F. D., Wireko-M., Elsa I. & Ompouma (2016): Watermelon Seeds as Food: Nutrient Composition, Phytochemicals and Antioxidant Activity. International Journal of Nutrition and Food Sciences, 5, 2, pp. 139-144
Chawda, S. (2011). Prospective study of antioxidants, its mechanism and potential role in cancer. International Journal of Research in Pharmaceutical and Biomedical Sciences, ,2,3 ,pp. 47-52.
Enujiuba, V.N. & Akanbi, C.T. (2005). Compositional changes in African oil bean (Pentaclethra macrophylla Benth) seeds during thermal processing. Pakistan Journal of Nutrition. 4.1.pp. 27-31.
Hampl, S. J. & Gordon, W. M. (2007). Perspectives in Nutrition.7th Ed., McGraw-Hill, New York. pp 10-11.
Heim, K., Tagliaferro, A. & Bobliya, D. (2002) Flavonoid antioxidants: chemistry, metabolism and structure-activity relationships. Journal of Nutritional Biochemistry, 13, 10, pp. 572–584.
Khatiwora, E., Adsul, V., Kulkarni, M., Deshpande, N. R. & Kashalkar, R. V. (2010) Spectroscopic determination of total phenol and flavonoid contents of Ipomoea carnea. International Journal of Chemical Technology Research, 2, pp.698-1701.
Ngoddy, P. O., & Ihekeronye, A. I. (1985). Integrated Food Science and Technology. 1st ed. London: Macmillan Publisher Limited.
Ordonez, A., Gomez, J., Vattuone, M. & Isla, M. (2006). Antioxidant activities of Sechium edule swart extracts. Food Chemistry, 97, pp. 452-458.
Oseni, O. A & Okoye, V. I.(2013). Studies of Phytochemicaland Antioxidant properties of the Fruit of Watermelon (Citrullus lanatus). (Thunb.). Journal of Pharmaceutical and biomedical sciences; 27,27, pp.508-514.
Rahman, H., Manjulak, K., Anoosha, T., Agaveni, K., Chinna, E. M. & Dipankar, B. (2013). In-vitro antioxidant activity of Citrullus lanatus seed extracts. Asian Journal of Pharmaceutical and Clinical Research, 6, pp. 152-157.
Tabiri B, Agbenorhevi J. K., Wireko-Manu, F. D. & Ompouma, E. I. (2016). Watermelon seeds as food: Nutrient composition, phytochemicals and antioxidant activity. International Journal of Nutrition and Food Sciences 5, pp. 139-144.
WHO (2007). Nutrition for health and development-challenges. www.who/nutrition. html
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