Nisha Agarwal Gurmukh Singh B. K. Kumbhar


The present work investigated the effect of salt solutions of sodium chloride, and sodium bicarbonate on the water uptake by kidney beans (Phaseolus vulgaris) at different temperatures (30, 45 and 60 0C). Thirty-five soaking solutions were prepared using NaCl and NaHCO3 to find the optimum soaking treatment and time to maximise the hydration. Hydration kinetics of kidney beans was studied in different concentrations of the salt solutions and at different temperatures by the method of weight gain until equilibrium conditions were attained. Response surface methodology was used to design the experiments and to optimize the levels for minimum soaking time and to maximize the hydration. The soaking solutions affected the mass transfer in both seed coat and cotyledon, demonstrating changes on both proteins and polysaccharides.  Increasing the temperature from 30 to 60 0 C in sodium chloride solution and sodium bicarbonate solution (0.5, 1.0 and 1.5% concentration) decreased the soaking time from >225min and 225 min to 82.5 min and 73.5 min respectively to achieve around 80% hydration. Beans soaked in sodium bicarbonate solution exhibited higher hydration rates than in distilled water followed by sodium chloride solution at the same salt concentration. Soaking for about three hours at 300C resulted in maximum hydration.  The optimum soaking treatment was found to be in a salt solution containing 1.10% NaCl and 0.92% NaHCO3 at 300C which resulted in a soaking time of 193.45 min.  This work demonstrated a simple and non-tedious approach for enhancing the hydration process of grains.



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Hydration, Kidney bean, Response surface methodology, Salt solution

Abd El-Hady, E.A., Habiba, R.A. (2003). Effect of soaking and extrusion conditions on antinutrients and protein digestibility of legume seeds. Lebensm -Wiss U-Technology, 36, 285–293.
Abu Ghannam, N. (1998). Modeling textural changes during the hydration process of red beans. Journal of Food Engineering, 38, 341-352.
Aminigo, E.R., and Metzger, L.E. (2005). Pretreatment of African Yam Bean (Sphenostylis stenocardia): Effect of Soaking and Blanching on the Quality of African Yam Bean Seed. Plant Foods for Human Nutrition, 60, 165–171.
AOAC. (1984). Official Methods of Analysis, 14th ed. Association of Official Analytical Chemists, Washington. DC.
Avila, B.P., Satos dos Santos, M., Nicoletti, A.M., Alves, G.D., Elias, M.C., Monks, J., and Gularte, M.A. (2015). Impact of Different Salts in Soaking Water on the Cooking Time, Texture, and Physical Parameters of Cowpeas. Plant Foods for Human Nutrition, 70(4), 463-469.
Bello, M., Tolaba, M.P., Suarez, C., 2004. Factors affecting water uptake of rice grain during soaking. Lebensmittel-Wissenschaft und -Technologie, 37, 811–816.
Choung, M.G., Choi, B.R., An, Y.N., Chu, Y.H., Cho, Y.S. (2003). Anthocyanin profile of Korean cultivated kidney bean (Phaseolus vulgaris L.). J. Agric. Food Chemistry, 50 (24), 7040-7043
Clark J.P. (1978). Mathematical modelling in sterilization processes. Food Technology, March 73-75.
Engels, C., Hendrickx, M., De Samblanx, S., De Gryze, I., Tobback, P., 1986. Modeling water diffusion during long grain rice soaking. Journal of Food Engineering, 5, 55–73.
Haladjian, N., Fayad, R., Toufeili, I., Shadarevian, S., Sidahmed, M., and Baydoun, E. (2003). pH, Temperature and Hydration kinetics of faba beans (Vicia faba L.). Journal of Food Process and Preservation, 27:9-20
Hsu, K.H., Kim, C.J., and Wilson, L.A. (1983). Factors affecting water uptake of soyabeans during soaking. Cereal Chemistry, 60, 208-211.
Kader, Z.M.A. (1995). Study of some factors affecting water absorption by faba beans during soaking. Food Chemistry, 53(3), 235-238.
Khuri, A.I., and Cornell, J.A. (1987). Response surfaces, designs, and analysis. New York: Marcel Dekker.
Kon, S. (1979). Effect of soaking temperature on cooking and nutritional quality of beans. Journal of Food Science, 44, 1329-1334.
Miano A.C, Augusto, P.E.D. (2015). From the sigmoidal to the downward concave shape behavior during the hydration of grains: effect of the initial moisture content on Adzuki beans (Vigna angularis). Food Bioprod Process, 96:43–51.
Miano, A.C and Augusto, P.E.D. (2018). The hydration of grains: A critical review from description of phenomena to process improvements. Comprehensive Reviews in Food Science and Food Safety, 7, 352-370
Miano, A.C., Garcia, J.A., and Augusto, P.E.D. (2015). Correlation between morphology, hydration kinetics and mathematical models on Andean lupin(Lupinus mutabilisSweet) grains. LWT - Food Science and Technology, 61:290–98.
Mustafa, A., Ceylan, I., Sevik, S., and Dogan, H. (2015). Decreasing the Cooking time of dry beans without lowering the quality. Journal of Polytechnic, 18(1), 29-34.
Nciri, N., Cho, N., Bergaoui, N., Mhamdi, F.E., Ammar, A.B., Trabelsi, N., Sami, Z., Fathi, G., Ben, M.A., Haj, S.F., Ben, A.F., 2015. Effect of white kidney beans (Phaseolus vulgaris L. var. Beldia) on small intestine morphology and function in Wistar rats. Journal of Medicinal Food, 18 (12), 1387-1399.
Nelson, R.L., and Hsu, K.H. (1985). Effects of leachate accumulation during hydration in a thermo-screw blancher on the water absorption and cooked texture of navy beans. Journal of Food Science, 50 (4), 782-788.
Oliveira, A.L., Colnaghi, B.G., Silva, E. Zd., Gouvea, I.R., Vieira, R.L., and Augusto, P.E.D. (2013). Modelling the effect of temperature on the hydration kinetics of adzuki beans (Vigna angularis). Journal of Food Engineering, 118, 417–20.
Onyeike E.N. and Uzogara, S.G. (2000)Effect of soaking in salt solutions on water absorption, ph and cooking time of African yam bean seeds (Sphenostylis stenocarpa hochst ex. A. Rich harms). Global journal of pure and applied sciences, 6 (1), 67-73
Phlak, L.C., Caldwell, K.B., and Stanley, D.W. (1989). Comparison of methods used to characterize water imbibition in hard-to-cook beans. Journal of Food Science, 54, 326-329.
Piergiovanni AR. (2011). Kinetic of water adsorption in common bean: considerations on the suitability of Peleg’s model for describing bean hydration. Journal of Food Processing and Preservation, 35: 447–52.
Rakshit, M. Sharma, A. Saha, J. and Sarkar, P.K (2015). Optimization of the soaking condition of blackgram to minimize the flatogenic sugar content in blackgram based products. LWT – Food Science and Technology, 63(2), 814-820.
Rockland, L.B., and Metzler, E.A. (1967). Quick-cooking lima and other dry beans. Food Technology, 21, 344-348.
Sayar, S., Turhan, M., and Gunasekaran, S. (2001). Analysis of chickpea soaking by simultaneous water transfer and water–starch reaction. Journal of Food Engineering, 50, 91–98
Schoeninger, V., Coelho, S.R.M., and Bassinello, P. (2017). Industrial processing of canned beans. Ciencia. Rural, 47(5)
Singh, B.P.N., and Kulshrestha, S.P. (1987). Kinetics of water absorption by soybean and pigeon pea grains. Journal of Food Science, 52, 1538–1544.
Taiwo, K.A., Akanbi, C.T., and Ajibola, O.O. (1998). Regression relationships for the soaking and cooking properties of two cowpea varieties. Journal of Food Engineering, 37, 331-344.
Uebersax, M.A., Ruengsakulrach, S., and Occena, L.G. (1991). Strategies and procedures for processing dry beans. Food Technology, 44, 104-111.
Varriano-Marston, E., and De Omana, E. (1979). Effects of sodium salt solutions on the chemical composition and morphology of black beans (Phaseolus vulgaris). Journal of Food Science, 44, 531–536.
Wood, J. A. and Harden, S. (2006). A Method to estimate the hydration and swelling properties of chickpeas (Cicer arietinum L.). Journal of Food Science, 71(4): E190 - E195.
Xiao, G., Gong, J., Ge, Q., and You, Y. (2015). Effect of vaccum soaking on the properties of soyabean (Glycine max (L.) Merr.). International Journal of Food Engineering. 11(1), 151-155.
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Agarwal, N., Singh, G., & Kumbhar, B. K. (2020). Modelling the Hydration kinetics of kidney beans (Phaseolus vulgaris) in sodium salts using Response surface methodology. Journal of Applied and Natural Science, 12(1), 42-52. https://doi.org/10.31018/jans.v12i1.2234
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