Evaluation of Functional, Proximate, Microbial and Sensory Properties of Pearl Millet-Bambara Ground Nut <i>Yarsala </i>(A Traditional Deep-fried Fermented Puff)


  • Gervase Ikechukwu Agbara University of Maiduguri, Borno State, Nigeria.
  • Fatima Ajiya Masaya
  • Mamudu Halidu Badau
  • Odera Amin Igwegbe
  • Alkali Mohammed Yakaka


Millet, Bambara groundnut, Yarsala, Fermentation, Frying


Pearl millet flour were partially substituted with bambara nut(30-50%) to form blends which were used to prepare yarsala; the functional and the microbial status of the blends as well as the proximate and sensory properties of the yarsala were analysed. Supplementation  increased the water absorption capacities(1.61-1.69ml/g) and decreased swelling capacities(28.21%-37.68%), the oil absorption capacities(0.91-0.99ml/g) and the wettabilities(10.40-11.57secs) which decreased progressively with increased bambara nut flour addition;  the emulsion capacities(37.33-44.22%.) and stabilities(29.68-52.33%), foam capacities(30.00-38.74%) and stabilities(5.35-8.61%) were also highest in 30% supplementation thereafter dropped progressively. The moisture, ash, fat, protein, fibre and carbohydrate contents of yarsala were 7.50-8.59%, 1.40-1.62%, 18.05-20.36%, 8.82-15.46%, 1.50-2.20% and 55.41-59.33% respectively; the food energy(444.81-455.84 kcal) were highest in the control. Bacterial, mould-yeast, S.aureus, E. coli, and Coliform counts were 1.07x104 - 1.45x104, 1.96x104 - 2.33x104,1.03x102 - 2.70x102, 1.02x102-2.30x102 and1.64x102-4.25x102, Salmonella spp were not detected. There were no significance difference in the appearance and aroma of yarsala however the control had better taste, texture and greater acceptability. Functional properties of the blends as well as the nutrient density of yarsala were enhanced with bambara nut addition; the blends could be utilized for  other millet-based food products as well.

Author Biography

Gervase Ikechukwu Agbara, University of Maiduguri, Borno State, Nigeria.

Food Science and Technology, Snr. Lec.


McDonough, C.M., Rooney, L.W., Serna-Saldivar, S.O.,(2000) The Millets. Food Science and Technology: Handbook of Cereal Science and Technology, CRC Press 2nd, pp.177-210.

FAOstat (2011). “Production,Crops,Millet,2010 Data.†Statistic Division, Food and Agriculture Organization of United Nations, Rome, Italy.

USDA (2015).â€Raw millet per 100 g, full report†National Nutrient Data Base, Release, 28

Sawaya, W.N., Khalil, J.K. and W. J. Safi (1984) Nutritional Quality of Pearl Millet and Bread. Plant Foods Human Nutrition, 34 (2):117-125.

World Bank(2015).Gross National Income Per Capita, Retrieved on 20th September,2016 from :http://data.worldbank.org/catalogue-of-data/development indicators.

IFC Annual Report (2017).Sub-Saharan Africa: Bringing Progress to Half of the Worlds Poor. Retrieved on Monday 5th February, 2018 from:Adwww.ifc.org/annualreport.

Muller, O. and Krawinkel, M (2005). Malnutrition and Health in Developing Countries. CMAJ, 173:279-286.doi:10.1503/cmaj.0503 42.

Tizazu, H and Emire, SA (2010).Chemical Composition, Physicochemical and functional properties of lupin (Lipinusalbis) seeds grown in Ethiopia. Africa journal of Food Agric. Nutrition and Development.10(8):3029-3046p.20-21,National Agricultural Statistics Services, USDA ,Washington DC. http://usda.manlib.conell.edu/usda/current/cropprodsu…

Quedrago, M., Quedrago, J.T., Tinere, J.P., Balma, D., Dabire, C.B. and Konate, G.(2008). Characterization and evaluation of accessions of Bambara groundnut(Vigna subterranean L. Verdcourt) from Burkina Faso. Scientia Naturalis,5:191-197.

Ali, M.A. M; El-Tinay, A.H; Elkhalifa, A.E.O., Mallasy, L.O, Babikeri, E.E(2012). Effect of different supplementation level of soybeans flour on pearl millet functional properties. Food and Nutrition Science 3:1-6

Linnemann, A.R. (1974). Thermal Regulation of Phonological Development and Growth of Bambara ground nut. Ph.D Thesis, University of Netherlands.

Thotapilla, G and Rossel, H.W. (1997). Identification and Characterization of Various Viruses Infecting Bambara groundnut() in Nigeria. Int. J. of Pest Management, 43:177-185

FAO (2009). FAOstat. Food and Agriculture of the United Nations, Rome Italy. http://faostat.fao.org/default.aspx.

Mkandwire, C.H.(2007).Review of Bambara ground nut Production in Sub-Saharan Africa. Agricultural Journal, 2:464-470.

Olaleye, A.A., Adeyeye, E.A., Adesina, A.J. (2013). Chemical Composition of Bambara groundnut (Vigna subterranean L. Verdc.). Bangladesh J. Scientific and Industrial Research, Vol.48, Issue 3.

Ijarotimi, O.S.,(2008).Nutritional Composition, Microbial Status, Functional and Sensory Properties of Infant Diets Formulated from Cooking Fruits(Musa spp ABB genome) and Fermented Bambara groundnut(Vigna subterranean. Verdc.) Seeds. Nutrition and Food Science 38:325-340.

Mbiata, T.I., Ikenebomeh, M.J., and Ezeibo, S. (2009). Evaluation of Content and Functional Properties of Fermented Maize Flour Blended with Bambara Ground nut. African Journal Food Science, 3:107-107-112.

Beuchat, L.R. (1977).Functional and electrophoretic Characteristics of Succinylated Peanut Flour Protein. Journal of Agric. Food Chem25:258-261.

Onwuka, G.I. (2005). Food Analysis and Instrumentation, pp.93-140, Naphthali Prints, Lagos Nigeria.

Okaka, J.C. and Potter, N. N.(1977). Functional and Storage Properties of Cowpea Powder-Wheat Flour Blends in Bread making, J. Food Sci.2 (3):828-833.

Yatsumatsu,K.,Sawada,K.,Moritaka,S.,Toda,JandInshii,K (1972) Whipping and emulsifying properties of soybean products.Agric.Biol.Chem.,362:719-727727.

Narayana, K. and Narasinga, M.S.(1984) Functional Properties of Raw and Heat Processed Winged Bean (Psophocarpus tetranolobus) Flour. J. Food Science,49:944-947.

AACC American Association of Cereal Chemist (2000) “Approved methods of the American Association of Cereal Chemist†10th Edition, The Association, ST Paul, Minnesota USA.

Harigan, W.E. and McCane, M.C. (1976). Laboratory Methods in Food and Dairy Microbiology, pp 71-78: Academic Press, London

Vijayalkumar,P.T. and Mohankumar, J.B. (2009).Formulation and Characterization of Millet Blends Incorporated Composite Flour.Journal of Agricultural Sciences, Vol.1, Issue 2.

Kaushal, P., Kumari, V., and Sharman, H.K. (2012). Comparative Study of Physicochemical, Functional, Anti-nutritional and Pasting Properties of Taro(Colcasia esclenta) Rice, Pigeon pea Flours and their Blends. LWT-Food Sci. Technol.,48:59-68,doi:10.1016/j.int.2012;02.028.

Padmashree, .S., Vijayalakshmi, L. and Puttaraj, S.(1987).Effect of Traditional Processing on Functional Properties of Cowpea (Vigna unguiculata) Flour. J. Food Sci. and Tech.,24:221-225.

Onimawo, J.A., A.H., Momoh, and A., Usman (1998) Proximate Composition and Functional Properties of Bambara ground nut (Voandeiza subterranean).Plant Foods Human Nutr.53:155-158.

Chandra, S., Singh, S. and Kumari, D (2015).Evaluation of functional properties of composite flours and sensorial attributes of composite flour biscuit. Journal Food Sci., Technology, 52(6):3681-3688.

Sathe, S.K. and Salunkhe, D. K. (1981). Functional properties of the Great Northern Bean (Phaseolus vulgaris. L) Proteins: Emulsion Formation and Gelation Properties. J. Food Science, 46:71-81.

Adebowale, A.A., M.T., Adegoke, S.A., Sanni, M.O., Adegunwa, and G.O., Fetuga (2012) Functional and Biscuit Making Potential of Sorghum-Wheat Flour Composite (2012) Am. J Food Technol.7(6):372-379. Doi:10.3923/ajft.2012.372.379

L. Chel-Guerrero, V., Perez-Flores, D., Betancur-Acona and G. Davila-Ortiz (2002). Functional Properties of Flour and Protein Isolates from Phaseolus lunatus and Canavalia ensiformis Seeds. J. Agric.FoodChem.50(3):584-591 Doi:10.1021/jf010778j.

McWaters, K.H., and Brantley, B.B., (1982) Characteristics of Akara Prepared from Cowpea Paste and Meal International Journal of Food Science 36:66 – 88. .

Iwe, M.O., Onyeukwu, U., Agiriga, A.N., (2016). Proximate, Functional and Pasting Properties of FARO 44 ,African Yam Bean and Brown Cowpea. Cogent Food and Agriculture,Vol.2, Issue1.

Oghbaei, M. and Prakash, J.(2016) Effect of Primary Processing of Cereals and Legumes on its Nutritional Quality: A Comprehensive Review. Cogent Food and Agric.Vo.2, Issue1

Ayo, J.A., Ouoha, G., Agu, H., Ayo, V.A., Avu, E.O., Sosanya, M., and Adeosun, F. (2012). Effect of added beniseed paste of millet based masa. African Journal of Food Science and Technolog,3(10):236-243.

Igbabul, B., Adole, D., Sule, S. (2013). Proximate Composition, Functional and Sensory Properties of Bambara nut (Voandzeia subterranean) Cassava(Manihot esculentus) and Soybean(Glycine max) Flour Blends for Akpeka Production. Curr. Res. Nutr. Food Sci.Vol.1, Issue 2 doi://dx.doi.org/10.12944/CRNFSJ.1.2.06.

Pinho, B.H. and Furlong, B.E.(2000).The occurrence of Molds and Yeasts and Mycotoxins in Prcooked Pizza Dough Sold in Southern Rio Grand do Sul. Braz.J.Microbiol..31(2): http;//dx.doi.org/10.1590/S1517-8382200000020007

EC Regulation (2005). Microbiological criteria for foodstuffs: European Commission Regulation 2073. Retrieved on June 29th, 2017 from, http://www.fsai/upload files/consol-Reg.2073-2005.pdf.

Food Source Information (2015) Flour: Colorado Food Safety Center of Excellence. Retrieved on 7th June, 2017 from, http://www.fsi.colostate.edu/flour

Okoye, J.J., Ene, G.I., and CC Ojobor (2017) Chemical and microbial of commercial cowpea flours sold in Enugu state, Nigeria, International Journal of Food Nutrition Science Vol.6(1) Jan. 2017.

Oluwana, I.B., Malomo, S.A., Ogbodogbo, E.O..(2012). Quality Assessment of Flour and Bread from Sweet Potato-Wheat Composite Blends. Int. Journal of Biol. And Chem. Sciences.Vol.6, Issue 1.




How to Cite

Agbara, G. I., Masaya, F. A., Badau, M. H., Igwegbe, O. A., & Yakaka, A. M. (2018). Evaluation of Functional, Proximate, Microbial and Sensory Properties of Pearl Millet-Bambara Ground Nut <i>Yarsala </i>(A Traditional Deep-fried Fermented Puff). Asian Journal of Agriculture and Food Sciences, 6(2). Retrieved from https://ajouronline.com/index.php/AJAFS/article/view/5260