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Comparative Nutritional Analysis of Black Fonio (Digitaria iburua) and White Fonio (Digitaria exili)

Author Affiliations

  • 1Dept. of Biotech, School of Engineering and Technology, Sharda University, Knowledge park III, Greater Noida, Gautam Budha Nagar, INDIA
  • 2Deparment of Biochemistry, Faculty of science, Bayero University, Kano, Kano-NIGERIA

Int. Res. J. Biological Sci., Volume 4, Issue (6), Pages 4-9, June,10 (2015)


A comprehensive study was carried out to compare the nutritive value of black and white Fonio, both of which are of West African origin. Standard methods of analysis was used to analyses the proximate and some mineral composition of the both grains. The nutritive value such as crude protein, crude fat, crude fiber, carbohydrate, moisture and ash content was determined. Minerals such as sodium and potassium were determined using flame photometry; while zinc, iron and calcium were determined using atomic absorption spectrometry. The result shows that black Fonio contains 8.75% crude protein, 4.00% crude fat, 1.03% crude fiber, 76.91% carbohydrate, 2.31% ash, 7.00 % moisture, sodium (Na) 30mg/100g, potassium (K) 8.45mg/100g, calcium (Ca) 30.00mg/100g, Iron (Fe) 2.75mg/100g, Zinc (Zn) 0.75mg/100g while that of white Fonio was found to contained 7.11% crude protein, 3.00% crude fat, 0.79%crude fiber, 79.72% carbohydrate, 2.13% ash, 7.00% moisture, sodium (Na) 20.00mg/100g, Potassium (K) 5.40mg/100g, Calcium (Ca) 20.00mg/100g, Iron (Fe) 1.10mg/100g, Zinc (Zn) 0.65mg/100g. The result shows that black Fonio is more nutritive than the white Fonio.


  1. Vietmeyer N.D., Borlaugh N.E., Axtell J., Burton G.W., Harlan J.R. and Rachie K.O., (Ed) Fonio (Acha). Lost crop in Africa Chap. 3, BOSTID Publication, 58-75 (1996)
  2. Kuta D. D., Kwon-Ndung E., Dachi S., Ukwungwu M. and Imolehin E.D., Potential role of biotechnology tools for genetic improvement of lost crops of Africa: The case of Fonio (Digitaria exilis and Digitaria iburua), Mini review, Afr J Biotechnol., 580-585 (2003)
  3. Ntui V.O., Thirukkumaran G., Azadi P., Khan R.S., Nakamura I. and Mii M., Stable integration and expression of wasabi defensin gene in “Egusi” melon Colocynthis citrullus L.) confers resistance to Fusarium wilt and Alternaria leaf spot, Plant Cell Rep., 29, 943-954 (2010)
  4. Kuta D.D., Kwon-Ndung E., Dachi S., Bakare O. and Ogunkanmi L.A., Optimization of protocols for DNA extraction and RAPD analysis in West African Fonio Digitaria exilis and Digitaria iburua) germplasm characterization, Afr. J. Biotechnol.,, 1368-1371 (2005)
  5. Kjeldahl J., Determination of Protein Nitrogen in Food Products, Ency. Food. Sci., 439-441 (1883)
  6. A.O.A.C., Official Methods of Analysis of the Association of Official Analytical Chemists13th edition. Washington, D. C (1980)
  7. AOAC, ISO, AACC, AOCS, The determination of crude fiber in food using the Standard Fibrecap, 2021/2023 (2000)
  8. A.O.A.C., Official methods of analysis of the Association of official analytical chemists, Washington, D.C (1970)
  9. Mason W.B., Flame Photometry, Clinical Chemistry, Principle and Techniques, Richard J.H, Donald C.C and James W.W. 2nd edition, Harpers and Row Publishers London, 49-64 (1974)
  10. Gul S. and Safdar M., Proximate Composition and Mineral Analysis of Cinnamon, Pak. J. of Nutr., 8, 1456-1460 (2009)
  11. Allen S.E, Max H.G, John A.P and Christopher Q., Chemical Analysis of Ecological materials, Black well Scientific Publishing, London, 12-234 (1974)
  12. Vanli J.C., Atomic Absorption spectrometry. Analytical atomic Absorption Spectroscopy, Academic press, Inc. Orlando, Florida, 11-293 (1980)
  13. CIRAD, European Commission Research Headlines: Research project brings African grain to European tables, Accessed 12 may 2010, (2006)
  14. Jideani I.A. and Jideani V.A., Developments on the cereal grains Digitaria exilis (acha) and Digitaria iburua(iburu), J Food Sci. Technol.,48, 251-259 (2011)
  15. Kasarda D.D., Grains in relation to celiac disease, Cereal Foods World, 46, 209–210 (2001)
  16. Kahlon T.S., Evaluating healthful properties of cereals and cereal fractions by their bile-acid-binding potential, Cereal Foods World, 54, 118–121 (2009)
  17. Walravens P.A., Hambidge K.M. and Koepfer D.M., Zinc supplementation in infants with a nutritional pattern of failure to thrive: A double-blind, controlled study, Pediatrics, 83, 532-538 (1989)
  18. Glew R.S., Amoako-Atta B., Ankar-Brewoo G., PresleyJ., Chuang L-T., Millson M., Smith B.R. and Glew R.H., Furthering an understanding of West African plant foods: Mineral, fatty acid and protein content of seven cultivated indigenous leafy vegetables of Ghana, British Food Journal, 112, 1102-1111 (2010)
  19. Chibbar R.N., Ganeshan S., Båga M. and Khandelwal R. L., Carbohydrate metabolism. In Encyclopedia of Grain Science, Elsevier Academic Press, Oxford, 168-179 (2004)
  20. Ballogou V.Y., Soumanou M.M., Toukourou F. and Hounhouigan J.D, Structure and Nutritional Composition of Fonio (Digitaria exilis) Grains, Int. Res. J. Biological Sci., 73-79 (2013)