ISSN: 2375-3935
American Journal of Food Science and Nutrition  
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Comparative Study of the Proximate Composition and Functional Properties of Composite Flours of Amaranth, Rice, Millet, and Soybean
American Journal of Food Science and Nutrition
Vol.6 , No. 1, Publication Date: Feb. 4, 2020, Page: 6-19
6102 Views Since February 3, 2020, 999 Downloads Since Feb. 3, 2020

Hannington Twinomuhwezi, Department of Physical Sciences, Kampala International University, Kampala, Uganda; Department of Chemistry, Kyambogo University, Kyambogo, Uganda.


Chinaza Godswill Awuchi, Department of Physical Sciences, Kampala International University, Kampala, Uganda.


Mihigo Rachael, Department of Physical Sciences, Kampala International University, Kampala, Uganda.


The study compared the proximate composition and functional properties of various combinations of rice, millet, amaranth, and soybean flour composites. The rice and millet, rice and amaranth, and rice and soybean flours were mixed in the ratios of 70:30; 50:50; 40:60 percent. The results on proximate composition showed that the moisture content ranged from 5.99% to 9.82%. The highest moisture content was observed in rice 40%-millet 60%; the ash content ranged from 1.01% to 2.83%. the highest ash content was found in RSOYc; the fat content ranged between 0.77% (RMa) to 8.96% (RSOYc); the protein content ranged between 6.91% (RMb) to 18.17% (RSOYc), carbohydrate content ranged between 67.1 (RSOYb) to 81.58% (RMa); the total energy ranged between 363.95 kcal (RMc) to 413.94 kcal (RSOYc) and fiber content ranged between 0.99% to 1.12. The results of the functional properties showed that the emulsion capacity ranged between 50.0% to 53.69% with highest in RSOYa; the emulsion stability ranged between 48.57% to 54.76%, with the highest in RSOYa; the water absorption capacity ranged between 5.79% to 7.17%, with the highest in RSOYb; the oil absorption capacity ranged between 5.89% to 7.72%, with the highest in RSOYc; bulk density ranged between 0.99% to 1.212; and the swelling capacity ranged between 5.0 ml to 23.5ml with the highest in RSOYc. The mixture of rice-soybean flour (40%-60%) is suitable for the preparation of foods for the young children with protein-energy malnutrition (PEM).


Proximate Composition, Functional Properties, Composite Flours, Grains, Rice Flour, Amaranth Flour, Millet Flour, Soybean Flour


Chandra, S., Samsher, S. and Kumari, D. (2014). Evaluation of the functional properties of composite flours & sensorial attributes of composite flour biscuits. Journal of Food Sci and Technology, 52 (6): 3681–3688.


Noorfarahzilah, M., Lee, J. S., Sharifudin, M. S., Mohd Fadzelly, A. B. and Hasmadi, M (2014). Applications of composite flour in development of food products. International Food Research Journal 21 (6): 2061-2074.


Awuchi, C. G. (2019a). Proximate Composition and Functional Properties of Different Grain Flour Composites for Industrial Applications. International Journal of Food Sciences, v. 2, n. 1, p. 43-64, nov. 2019. ISSN 2520-4637.


Igwe V S; Omeire G C; Awuchi C G; Kwari M I; Oledimma N U; Amagwula I O (2018a). Ethyl Carbamate in Burukutu Produced from Different Sorghum Varieties Under Varying Storage Conditions Using Response Surface Methodology. American Journal of Food Science and Nutrition, 2018, 5 (4); 82 – 88. ISSN: 2375-3935.


Igwe V S; Omeire G C; Awuchi C G; Kwari M I; Oledimma N U; Amagwula I O (2018b). Effect of Storage Conditions on the Methanol Content of Burukutu Produced from Different Sorghum Varieties; a Response Surface Methodology Approach. American Journal of Food, Nutrition, and Health, 2018, 3 (3); 42–47.


Oluwatoyin, O., Toyin, A., Temiloluwa, A., Olajumoke, O., Joshua, A., Olubunmi, I., Folashade, O., Samuel, O. and Sulaiman, K. (2016). Some of the functional properties of flours from the commonly consumed selected Nigerian Food Crops. International Research Journal of Agricultural and Food Sciences, Vol. 1 Issue 5, pp: (92-98).


Awuchi, C. G.; Igwe, V. S.; and Echeta, C. K. (2019). The Functional Properties of Foods and Flours. International Journal of Advanced Academic Research, 5 (11); 139 – 160. ISSN: 2488-9849.


Sudha, M. L., Vetrimani R, and K Leelavathi (2007). The influence of fibre from different cereals on the rheological characteristics of wheat flour dough and on biscuit quality. Food Chemistry 100: 1365-1370.


Chandra, S. and Samsher S. (2013). Assessment of functional properties of different flours. African J of agric, vol. 8 (38), pp. 4849-4852


Yarger, L. (2008). Echo Technical Note; Amaranth grain and vegetable. pp. 1-4.


Sindhuja, A., Sudha, M. L. and Rahim, A. (2005). Effect of incorporation of amaranth flour on the quality of cookies. European Food Research Technology, 221: 597-601.


Tukamuhabwa, P., Obaa, B., Obua, T., Namara, M., Okii, D. and Kabayi, P. (2016). Status of soybean production and impact indicators of new soybean varieties in Uganda. College of Agricultural & Environmental Sciences, Makerere University.


Arnarson, A. (2019). Soybean 101: Nutition facts and health effects. Available from retrieved on 15th 7, 2019.


Julianti, E., Rusmarilin, H., Ridwansyah and Yusraini E. (2015). Functional & rheological properties of composite flour from sweet potato, maize, soybean and xanthan gum. 4. J of the Saudi Society of Agricultural Sciences, (pp 172)


Hui, Y. H., Culbertson, J. D., Duncan, S., Guerrero-Legarreta, I., Li-Chan, E. C. Y., Ma, C. Y., Manley, C. H., McMeekin, T. A., Nip, W. K., Nollet, L. M. L., Rahman, M. S., Toldra, F. and Xiong, Y. L. (2006). Handbook of food science, technology, and engineering. Vol 1.


Kaatze, U. and Hubner, C. (2010). Electromagnetic techniques for moisture content determination of materials. Measurement Science and Technology, 21: 082001 (pp 26).


Bell, L. N. and Park, Y. W. (2004). Determination of moisture & ash contents of foods. In: Handbook of Food Analysis, second edition. Boca Raton: Taylor & Francis Group, LLC. pp. 55–83.


Nielsen, S. S. (2009) Food analysis, 4th edition. Perdue University West Lafayette, IN 47907, USA (pp 151-168).


Awuchi, C. G. and Nwankwere, Emeka T. (2018). Residual Calcium Content of Sweet Potato Slices after Osmotic Pre-treatment with Salt (NaCl) Solution. American Journal of Food, Nutrition, and Health, 3 (1); 8 – 15.


Awuchi, Chinaza Godswill (2019b). Medicinal Plants: the Medical, Food, and Nutritional Biochemistry and Uses. International Journal of Advanced Academic Research, 5 (11); 220 – 241. ISSN: 2488-9849.


Awuchi Chinaza Godswill; Ikechukwu O. Amagwula; Igwe Somtochukwu Victory; Allan Isiaga Gonzaga (2018). Effects of Repeated Deep Frying on Refractive Index and Peroxide Value of Selected Vegetable Oils. International Journal of Advanced Academic Research, 4 (4); 106 – 119. ISSN: 2488-9849.


Smith, D. M. and Culbertson, J. D. (2000). Proteins: Functional Properties, Chapter nine. In Food Chemistry: Principles and Applications. pp. 131–148. STS. West Sacramento, CA.


Phillips, K. M., Patterson, K. Y., Rasor, A. S., Exler, J., Haytowitz, D. B., Holden, J. M. and Pehrsson, P. R. (2006). Quality-control materials in the USDA National Food and Nutrient Analysis Program (NFNAP). Analytical and Bioanalytical Chemistry. 384, 1341.


Awuchi, Chinaza Godswill and Echeta, Kate Chinelo (2019). Current Developments in Sugar Alcohols: Chemistry, Nutrition, and Health Concerns of Sorbitol, Xylitol, Glycerol, Arabitol, Inositol, Maltitol, and Lactitol. International Journal of Advanced Academic Research, 5 (11); 1 – 33. ISSN: 2488-9849.


Awuchi, C. G. (2017). Sugar Alcohols: Chemistry, Production, Health Concerns and Nutritional Importance of Mannitol, Sorbitol, Xylitol, and Erythritol. International Journal of Advanced Academic Research, 3 (2); 31 – 66. ISSN: 2488-9849.


Ajatta, M. A., Akinola, A. S. and Osundahunsi, F. O. (2016). Proximate, Functional & Pasting Properties of Composite Flour Made from Wheat, Breadfruit and Cassava Starch. Applied Tropical Agriculture, Volume 21, No. 3 pp 160-161.


Mora, Y. N.; Contreras, J.; Aguilar, C.; Meléndez, P.; Ileana De la Garza, and Raúl, R. (2013). Chemical Composition & Functional Properties from Different Sources of Dietary Fiber. American Journal of Food and Nutrition, Vol. 1, No. 3, 27-33.


Muhammad A. S., Haq, N., Misbah, N., Hafiz, B. A., Mazhar, H. and Muhhamad, A. C. (2013). The functional properties of maize flour & its blends with wheat flour: optimization conditions by response surface methodology. Pakistan Journal of Botany, 45 (6): 2027-2035


Adeyeye, I. E. and Aye, A. P. (1998). Effect of sample preparation on the proximate composition and functional properties of African yam bean flour. Note 1 La Rivista Italian Della Sostanze Grasse, LXXV-Maggio. pp. 253-261.


Obiegbuna J. E, Nwankwo AJ, Ozue J. O., and Okolo CA (2019). Evaluation of Yield & Physicochemical Properties of Single Cereal Grain Akamu and Pre- and Post- Processed Multigrain Cereal Akamu Powders. International Journal of Food and Nutrition Research, 3: 29.


AOAC (2004). The official method of analysis, association of official agricultural chemists, 11th edition. Washington DC.


AOAC (1990). The official method of analysis of the AOAC, 15th edition. Washington DC.


James, S. C. (1995). Experimental Methods. In: Analytical Chemistry of Foods, Champman & Hall, New York, 28.


Yasumatsu, K., Sawada, K., Maritaka, S., Toda, J., Wada, T. and Ishi, K. (1972). Whipping and emulsifying properties of soy bean products. Agri. Biol. Chem. 36: 719-727.


Okaka, J. C. and Potter, N. N. (1977). Functional and storage properties of cowpea-wheat flour blends in bread making. Journal of Food Science, 42: 828-833.


Sosulski, F. W., Garatt MO, and Slinkard, A. E. (1976). Functional properties of ten legume flours. Int. J. Food Sci. Technol. 9: 66-69.


Iwe M. O., U. Onyeukwu, and A. N. Agiriga (2016). Proximate, functional & pasting properties of FARO 44 rice, African yam bean & brown cowpea seeds composite flour. Cogent Food & Agriculture (2016), 2: 1142409.


Blessing, I. O. (2014). Chemical, functional & pasting properties of wheat (triticumspp) -walnut (juglansregia) flour. Food and nutrition sciences, 5, pp 1591-1604. Available online at


Thomas, R., Wan-Nadiah, W. A. and Rajeev Bhat (2013). Physiochemical properties, proximate composition, and cooking qualities of locally grown and imported rice varieties marketed in Penang, Malaysia. International Food Research Journal 20 (3): 1345-1351.


Olawale, P. O. (2009). Evaluation of physicochemical & rheological characteristics of soybean fortified yam flour. Journal of Applied Biosciences, Vol. 13: 703 - 706.


Tenagashaw, M. W.; Kenji, G. M.1; Melaku, E. T. 3; Huyskens-Keil, S.; & Kinyuru, J. N. (2015). Proximate composition & selected functional properties of complementary foods from teff fortified with soybean and orange-fleshed sweet potato. RUFORUM Working Document Series (ISSN 1607-9345) No. 14 (1): 953-965.


Zayas, J. F. (1997). Functionality of proteins in food. Springer science & business media, 1997, pp 134.


Adebowale, Y. A., Adeyemi, I. A. and Oshodi, A. A. (2005). Functional & physicochemical properties of flours of six Mucuna species. African Journal of Biotechnology. 4 (12), pp 1461-1468.


Maha A. M. A., Abdullahi H., Abd Elmoneim, O. E., Limya, O. M. and Elfadil, E. B. (2011). Effect of Different Supplementation Levels of Soybean Flour on Pearl Millet Functional Properties. Food and Nutrition Sciences, 3, 1-6 31001.


Oppong David, Eric Arthur, Samuel Osei Kwadwo, Eric Badu, and Patrick Sakyi (2015). Proximate Composition & Some Functional Properties of Soft Wheat Flour. Int’l J. of Innovative Research in Sci, Engineering & Technol. 4 (2): 753–758. DOI: 10.15680/IJIRSET.2015.0402097.


Berul, B. D. (2015). Effect of soaking & germination on proximate composition, mineral bioavailability & functional properties of chickpea flour. Food and Public Health, 5 (4): 108-113 DOI: 10.5923/j.fph.20150504.02


Chinaza Godswill, Awuchi; Clifford I. Owuamanam; Chika C. Ogueke; and Victory S. Igwe (2019). Evaluation of Patulin Levels and Impacts on the Physical Characteristics of Grains. International Journal of Advanced Academic Research, 5 (4); 10 – 25. ISSN: 2488-9849.


Peleg. M and Bagley, E. B. (1983). Physical Properties of Foods. AVI Publishing Co. Inc., Westport.

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