Studies on the Moisture Dependent Physical Properties of Cowpea
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Abstract
Cowpea is a very important legume in Nigeria that is being utilized to Substitute high-cost animal protein for low-income people. The knowledge of some physical properties of various moisture contents is of utmost importance in the design of its handling and processing equipment and machinery, which is the aim of this work, which studied the physical properties of IT99K-573-1-1 (SAMPEA14) variety of Cowpea within 8.77 to 21.58 % db moisture content. The properties studied include Major, Intermediate, and Minor diameters, Sphericity, Surface area, Specific gravity, Volume, Bulk density, 50-tap density, 100-tap density, 1250-tap density, seed mass, Angle of repose, Geometric mean diameter, and Arithmetic mean diameter. The obtained results indicate that the Size, Sphericity, Geometric, Arithmetic diameter, Surface area, and seed mass increase linearly with an increase in moisture content by 13.8%, 27.4%, and 16.1% for the size, respectively. While sphericity rises by 7.5% and geometric mean diameter, arithmetic mean diameter, surface area, and grain mass increase by 22.2%, 20.7%, 24.9%, and 16.11%, respectively. Specific gravity, density, and repose angle were inversely linearly related to moisture content. Regression equations for each of the properties related to the grains' moisture content were developed.
Article received: 28/11/2022
Article accepted: 03/ 09/2023
Article published: 01/11/2023
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Aderinlewo, A.A., Raji, A.O. and Olayanju, T.M.A., 2011. Effect of moisture content on some physical properties of cowpea (Vigna Unguiculata). Journal of Natural Sciences, Engineering and Technology, 10(2), pp. 133–145. https://eprints.lmu.edu.ng/id/eprint/1314
Alemu, M., Asfaw, Z., Woldu, Z., Fenta, B.A., and Medvecky, B., 2016. Cowpea (Vigna unguiculata (L.) Walp.) (Fabaceae) landrace diversity in northern Ethiopia. International Journal of Biodiversity and Conservation, 8(11), pp. 297–309. Doi:10.5897/IJBC2016.%0A0946
Bamgboye, I.A., and Adebayo, S.E., 2012. Seed moisture dependent on physical and mechanical properties of Jatropha curcas. Journal of Agricultural Technology, 8(1), pp. 13–26.
Bart-Plange, A., Dzisi, K.A., and Ampah, J., 2012. Effect of drying on selected physical properties of “Asontem” cowpea variety. International Scholarly Research Notices, pp. 1–7. Doi:10.5402/2012/496026
Chowdhury, M.M.I., Sarker, R., Bala, B., and Hossain M., 2001. Physical properties of gram as a function of moisture content. International Journal of Food Properties, 4(2), pp. 297–310. Doi:10.1081/JFP-100105195
Chukwu, O., and Sunmonu, M.O., 2010. Determination of selected engineering properties of cowpea (vigna unguiculata) related to design of processing machines. International Journal of Engineering and Technology, 2(6), pp. 373–378.
da Silva, A.C., de Freitas Barbosa, M., da Silva, P.B., de Oliveira, J.P., da Silva, T.L., Junior, D.L.T., and de Moura Rocha, M., 2021. Health benefits and industrial applications of functional cowpea seed proteins. Grain and Seed Proteins Functionality. pp. 1–12. Doi:10.5772/intechopen.96257
Darvishi, H., 2012. Moisture-Dependent physical and mechanical properties of white sesame seed. American-Eurasian Journal of Agricultural and Environmental Sciences, 12(2), pp. 198–203.
Davies, R.M., and El-Okene, A.M., 2009. Moisture-dependent physical propeties of soybeans. International Agrophysics, 23(3), pp. 299-303.
Dugje, I.Y., Omoigui, L.O., Ekeleme, F., Kamara, A.Y., and Ajeigbe, H., 2009. Farmers’ guide to cowpea production in West Africa. IITA, Ibadan, Nigeria, 20, pp. 12-14. http://www.icrisat.org/tropicallegumesII/pdfs/Cowpea.pdf
Elharadallou, S.B., Khalid, I.I., Gobouri, A.A., and Abdel-Hafez, S.H., 2015. Amino acid composition of cowpea (Vigna ungiculata L. Walp) flour and its protein isolates. Food and Nutrition Sciences, 6(09), P.790. Doi:10.4236/ fns.2015.69082
Faostat, F., 2015. Food and agriculture organization of the United Nations Statistics Division. FAO Statistical Pocketbook Rome: FAO. www.fao.org/publications
Firouzi, S., Vishgaei, M.N.S., and Kaviani, B., 2009. Some physical properties of groundnut (Arachis hypogaea L.) Kernel cv. NC2 as a function of moisture content. American-Eurasian Journal of Agricultural and Environmental Science, 6(6), pp. 675–679.
FOA, (Food And Agriculture Organization Of The United Nations), 2011. Grain crop drying, handling and storage. In C.M. Geoffrey, O.G. Lawrence, J.C. Hakgamalang and O. A. Januarius (Eds.), Rural structures in the tropics (Design and Development), P. 366.
Karaj, S., and Müller, J., 2010. Determination of physical, mechanical and chemical properties of seeds and kernels of Jatropha curcas L. Industrial crops and products, 32(2), pp. 129-138.
Kebede, E., and Bekeko, Z., 2020. Expounding the production and importance of cowpea (Vigna unguiculata (L.) Walp.) in Ethiopia. Cogent Food & Agriculture, 6(1), P. 1769805. Doi:10.1080/23311932.2020.1769805
Kibar, H., and Öztürk, T., 2008. Physical and mechanical properties of soybean. International. Agrophysics, 22, pp. 239–244.
Kirse, A., and Karklina, D., 2015. Integrated evaluation of cowpea (Vigna unguiculata (L.) Walp.) and maple pea (Pisum sativum var. arvense L.) spreads. Agronomy Research, 13(4). pp. 956–968.
Koocheki, A., Razavi, S.M.A., Milani, E., Moghadam, T.M., Abedini, M., Alamatiyan, S., and Izadkhah, S., 2007. Physical properties of watermelon seed as a function of moisture content and variety. International Agrophysics, 21(4), pp. 349-359.
Mohsenin, M.N., 1986. Physical properties of plant and animal materials (Second Rev). Gordon and Breach, Science Publishers Inc pp. 79–127.
Moses, D.R., and Zibokere, D.S., 2011. Effect of moisture content on some physical and mechanical properties of three varieties of cowpea (Vigna unguiculata (L) Walp). Agricultural Engineering International: CIGR Journal, 13(1). pp. 1–16.
Moreira-Araújo, R.S.R., Sampaio, G.R., Manólio-Soares, R.A., Pereira-Silva, R., and Pereira-Silva, J. A., 2017. Identification and quantification of antioxidant compounds in cowpea. Rev. Ciên. Agron., 48, pp. 799–805. Doi:10.5935/1806-6690.20170093
Nazari Galedar, M., Jafari, A., and Tabatabaeefar, A., 2008. Some physical propeties of wild pistachio [Pistacia vera L.] nut and kernel as a function of moisture content. International Agrophysics, 22(1), pp. 117-124.
Henshaw, F.O., 2008. Varietal differences in physical characteristics and proximate composition of cowpea (Vigna unguiculata). World Journal of Agricultural Sciences, 4(3), pp. 302–306.
Omoigui, L.O., Kamara, A.Y., Kamai, N., Ekeleme, F., and Aliyu, K.T., 2020. Guide to cowpea production in Northern Nigeria. International Institute of Tropical Agriculture (IITA). http://www.iita.org.
Sangamithra, A., Gabriela, J.S., Prema, R.S., Nandini, K., Kannan, K., Sasikala, S., and Suganya, P., 2016. Moisture dependent physical properties of maize kernels. International Food Research Journal, 23(1), P.109.
Strochine, R., 1998. Physical Attributes 10. In P. U. Strochine, Richard (Department of Agricultural and Biological Engineering (Ed.), Physical Properties of Agricultural Materials and Food Products Fall, pp. 11–52.
Tado, C. J. M., Wacker, P., H.D., K., and Suministrado, D. C., 1999. Aerodynamic properties of paddy. Agricultural Engineering Journal, 8(2), pp. 91–100.
Tavakoli, H., Rajabipour, A., and Mohtasebi, S.S., 2009. Moisture-dependent some engineering properties of soybean grains. Agricultural Engineering International: CIGR Journal.
Thomas, A.A., and Olugbemi, A.O., 2009. Evaluation of Varietal and Moisture Content Effect of Some Cowpea Varieties (Vigna Unguiculata (L) Walp) on Their Bulk Density, Particle Density and Porosity. 57th Session of the International Statistical Institute, pp. 1–16.
Yalçın, İ., 2007. Physical properties of cowpea (Vigna sinensis L.) seed. Journal of Food Engineering, 79(1), pp. 57-62. Doi:10.1016/j.jfoodeng.2006.01.026