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Determination of Important Physical Properties and Water Absorption Capacities of Three Traditional Paddy Varieties in Sri Lanka

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2016

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Abstract (2. Language): 
Three Sri Lankan traditional paddy varieties (Kahawanu, Suwandall and Hangimuttan) were subjected to an experiment to determine physical properties and water absorption capacities. Physical Properties such as dimensions and grain masses were measured using laboratory test methods whereas, other properties were calculated based on relationship equations. Major dimensions (Length, Width and Thickness), 1000 grain weight, geometrical mean diameter, surface area, volume, sphericity and aspect ratio were significantly different (p<0.05) among paddy varieties. While similar physical properties (p>0.05) were also observed. Water absorption capacities were investigated by steeping paddy samples in water, controlled at 70 0C. Respective samples, having different holding times, were drawn timely for the moisture analysis. As a result of steeping, moisture contents of paddy samples had been increased to various levels (p<0.05). Although rapid moisture increment was observed at the initial stage of steeping. Subsequently, rate of absorption was declined by reaching to the equilibrium where the hydration rate was insignificant (P>0.05). All paddy varieties reported their highest water holding capacities after 5 hours of steeping and were ranged from 29.01% to 30.48% (w.b.). While Suwandall recorded the highest water absorption, Kahawanu recorded the lowest. The varietal differences and steeping time were significantly influenced (P<0.05) on water absorption capacities in paddy.
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REFERENCES

References: 

[1] Ejebe, C.K. (2013). Parboiling characteristics of selected rice varieties from Nigeria. Masters these. University of McGill. Viewed 17 Feb 2016,http://digitool.library.mcgill.ca/thesisfile123298.
[2] Bashar, Z.U., Wayayok, A. and Mohd, A.M.S. (2014). Determination of some physical properties of common Malaysian rice MR219 seeds. AJCS, 8(3), pp. 332-337.
[3] Ghadge,P.N. and Prasad,K. (2012). Some Physical Properties of Rice Kernels: Variety PR-106. J Food Process Technol. 3,8.
[4] Otegbayo, B. O., Osamuel, F., Fashakin, J. B. (2001). Effect of parboiling on physico-chemical qualities of two local rice varieties in Nigeria. J Food TechnolAfr, 6(4),pp. 130–132.
[5] Sareepuang K, Siriamornpun S, Wiset L, Meeso N. (2008). Effect of soaking temperature on physical, chemical and cooking properties of parboiled fragrant rice. World J AgricSci, 4(4), pp.409–415.
[6] Mir S A, Bosco S J D. (2013). Effect of soaking temperature on physical and functional properties of parboiled rice cultivars grown in temperate region of India. Food NutrSci, 4, pp. 282–288.
[7] Kale, S.J., Jha, S.K., Jha, G.A., Sinha, J.P. and Lal, S.B. (2015). Soaking Induced Changes in Chemical Composition, Glycemic Index and Starch Characteristics of Basmati Rice. Rice Science, 22(5), pp.227−236.
[8] Taiwo, K.A., Akanbi, C.T., Ajibola, O.O. (1998). Regression relationships for the soaking and cooking properties of two cowpea varieties. Journal of Food Engineering, 37, pp.331–344.
[9] Abu-Ghannam, N. and McKenna, B. (1997). Hydration kinetics of red kidney beans (Phaseolus vulgaris L.). Journal of Food Science, 62, pp. 520–523.
[10] Verma, R.C., Prasad, S., (1999). Kinetics of absorption of water by maize grains. Journal of Food Engineering, 39, pp.395–400.
[11] Bhattacharya, S., (1995). Kinetics of hydration of raw and roasted corn semolina. Journal of Food Engineering, 25, pp. 21–30.
[12] Sadeghi, M. Araghi, H.A. and Hemmat, A.( 2010). Physico-mechanical Properties Rough Rice (Oryza sativa L.) Grain as Affected by Variety and Moisture Content. AgricEngInt: CIGR Journal, 12(3), pp. 129-136.
[13] Nalladulai, K., Alagusundaram, K. and Gayathri, P. (2002). Airflow resistance of paddy and its byproducts. Bio-systems Engg., 83, pp. 67–75.
[14] Mohsenin, N.N. (1986). Physical properties of plant and animal materials. Vol1 Physical characteristics and mechanical properties, Gordon and Breach Science Publishers, New York.
[15] McCabe, W.L., Smith, J. C. and Harriorth, P. (2005). Unit operations of chemical engineering. New York: McGraw-Hill Book Company.
[16] Jain, R.K. and Bal, S. (1997). Properties of pearl millrt. J. Agric. Eng., Res., 66, pp.85-91.
[17] Varnamkhasti, M. G., Mobli, H., Jafari, A., Keyhani, A. R., Soltanabadi, M. H., Rafiee, S. and Kheiralipour, K. (2008). Some physical properties of rough rice (Oryza sativa L.) grain. Journal of Cereal Science 47 (3), pp.496–501.
[18] Kashaninejad, M., Maghsoudlou, Y., Rafiee,S. and Khomeiri,M.(2007). Study of hydration kinetics and density changes of rice (TaromMahali) during hydrothermal processing. Journal of Food Engineering. 79(4), pp.1383–1390.
[19] Resio, A.N.C., Aguerre, R.J. and Suarez, C. (2005).Analysis of simultaneous water absorption and water starch reaction during soaking of amaranth grain. Journal of Food Engineering, 68, pp. 265-270.
[20] Palipane,K.B. and Vellanki, R.R.(1977). Hydration Characteristics of local varieties of paddy. Anuradhapura, Sri Lanka. Rice process development center.
[21] AOAC (2000). Official methods of analysis. Association of official analysis chemists, Washington D.C., New York.
[22] Zareiforoush,H., Komarizadeh, M.H. and Alizadeh, M.R.(2009).Effect of Moisture Content on Some Physical Properties of Paddy Grains, Research Journal of Applied Sciences, Engineering and Technology, 1(3), pp. 132-139.
[23] Alonge, A. F. and Adigun, Y.J. (1999).Some physical and aerodynamic properties of sorghum as relates to cleaning. In proc. 21st annual Conference of the Nigerian Society of Agricultural Engineers (NSAE) at federal Polytechnic, Bauchi, Nigeria.
[24] Omobuwajo, T.O., E.A. Akanda and L.A. Sanni, (1999). Selected physical, mechanical and aerodynamic properties of African breadfruit (Treculla Africana) seeds. J. Food Engg., 40, pp.241–4.
[25] Lee K.J and P.L. Rogers (1983). The fermentation kinetics of ethanol production by zymomonasmobilis. Journal of Chemical Engineering, 27, pp.31-38.
[26] Luh, B.S. and Mickus, R. R. (1980).Parboiled rice. In Rice: production and utilization. West Port, CT, USA: AVI Publishing Co., Inc.
[27] Danbaba, N., Nkama, I, Badau, M. H., Ukwungwu, M.N., Maji1, A.T.,Abo, M. E., Hauwawu , H., Fati, K.I. andOko , A. O.(2014). Optimization of Rice Parboiling Process for OptimumHead Rice Yield: A Response Surface Methodology (RSM)Approach.International Journal of Agriculture and Forestry, 4(3), pp.154-165.
[28] Ahromrit,A., Ledward,D.A. and Niranjan,K. (2006). High pressure induced water uptake characteristics of Thai glutinous rice. Journal of Food Engineering,72(3), pp.225–233.
[29] Becker, H. A. (1960). On the absorption of liquid water by the wheat kernel. Cereal Chemistry, 37, pp. 309–323.

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