Engineering Properties of Flaxseed (LC 2063) at Different Moisture
Keywords:
Flaxseed, Moisture, Physical property, PorosityAbstract
Engineering properties of flaxseeds were evaluated as a function of moisture content. The geometric mean diameter and sphericity of the seed were 3.808 mm and 0.609 respectively. In the moisture range from 10-18% d.b., the length of the rewetted seed ranged from 4.698 to 4.758 mm, width from 2.400 to 2.360 mm, thickness from 0.999 to 2.157 mm, geometric mean diameter (GMD) from 2.240 to 2.893 mm, sphericity from 0.477 to 0.478. The thousand kernel weight (TKW) increased from 7.195 to 7.403 g, bulk density decreased from 613.818 to 547.174 kg/m3, true density increased from 1105.326 to 1183.200 kg/m3, porosity increased from 44.467 to 49.954 %, hardness decreased from 74.411 to 40.828 N, initial cracking force decreased from 52.470 to 34.019 N and area ranged from 6.140 to 6.406 Nmm. In the same moisture range, the static coefficient of friction varied from 0.320 to 0.420 for different surfaces, while the angle of repose varied from 16.969 to 24.699 for seed. Lightness (L), a value (red-green axis) and b value (yellow-blue axis) of seed decreased from 42.94 to 40.360, 7.22 to 4.96, and 10.70 to 8.30, respectively, with increase in moisture content of seed from 10 to 18 %, d.b.
References
Aydin, C. 2002. Physical properties of Hazel nuts PH postharvest technology. Biosystems Eng., 82: 297-303.
Baryeh, E.A. 2002. Physical properties of millet. Journal of Food Engineering, 51: 39-46.
Bourne, M.C. 1982. principles of objective texture measurement. In Food Texture and Viscosity: Concept and Measurement. pp 114-17. Academic Press, San Diego.
Cetin, M. 2007. Physical properties of barbunia bean (Phaseolus vulgaris L. cv. 'Barbunia') grain. Journal Food Engineering, 80: 353-358.
Chandrasekar, V. and Viswanathan, R. 1999. Physical and thermal properties of coffee. Journal Agricultural Engineering and Research, 73: 227-234.
Coskun, M.B., Yalcin, I. and Ozarslan, C. 2006. Physical properties of sweet corn grain (Zea mays saccharata sturt). Journal Food Engineering, 74: 523-528.
Dutta, S.K., Nema, V.K. and Bhardwaj, R.K. 1988. Physical properties of gram. Journal Agricultural Engineering and Research, 39: 259-
Fraser B.M., Verma, S.S. and Muir, W.E. 1978. Some physical properties of fababeans. Journal Agricultural Engineering and Research, 23: 53-
Ghasemi, V.M., Mobli, H., Jafari, A., Rafiee, S., Heidary Soltanabadi, M. and Kheiralipour, K. 2007. Some engineering properties of paddy (var. Sazandegi). International Journal of Agricultural Biology, 5: 763-766.
Gupta, R.K. and Das, S.K. 1997. Physical properties of sunflower grains. Journal Agricultural Engineering and Research, 66: 1-8.
Gupta, R.K. and Prakash, S. 1992. The effect of grain moisture content on the physical properties of JSF-1 safflower. Journal Oilgrains Research, 9: 209-216.
ISI. 1966. Indian standard method for analysis of oilgrains. IS: 3579. Indian Standards Institute, New Delhi.
Joshi, D.C., Das, S.K. and Mukherjee, R.K. 1993. Physical properties of pumpkin grains. Journal Agricultural Engineering and Research, 54: 219-229.
Kachru, R.P., Gupta, R.K. and Alam, A. 1994. Physico-chemical constituents and engineering properties of food crops. Jodhpur, India: Scientific Publishers.
Kimura, T., Bhattacharya, K.R. and Ali, S.J. 1993. Discoloration characteristics of rice during parboiling. Journal of the Society of Agricultural Structures, 24: 23-30.
Makanjuola, G.A. 1972. A study of some of the physical properties of melongrains. Journal Agricultural Engineering and Research, 17: 128-
Mohsenin, N.N. 1970. Physical properties of plant and animal materials. New York, Gordon and Breach Science
Ogunjimi, L.A.O., Aviara, N.A. and Aregbesola, O.A. 2002. Some engineering properties of locust bean grain. Journal of Food Engineering, 55: 95-99.
Oje, K. and Ugbor, E.C. 1991. Some physical properties of oilbean grain.
Journal Agricultural Engineering and Research, 50: 305-313.
Ougt, H. 1998. Some physical properties of white lupin. Journal Agricultural Engineering and Research, 69: 273- 277.
Ramakrishana, P. 1986. Melon grains: Evaluation of physical characteristics. Journal of Food Science and Technology, 23: 158-
Sacilik, K., Ozturk, R. and Keskin, R. 2003. Some physical properties of hemp grain. Biosystems Engineering, 86: 191-198.
Seifi, M.R. and Alimardani, R. 2010. Comparison of moisture dependent physical and mechanical properties of two varieties of corn (Sc 704 and Dc 370). Australian Journal of Agricultural Engineering, 1: 170- 178.
Shepherd, H. and Bhardwaj, R.K. 1986. Moisture dependent physical properties of pigeon pea. Journal Agricultural Engineering and Research, 35: 259-268.
Suthar, S.H. and Das, S.K. 1996. Some physical properties of karingda grains. Journal Agricultural Engineering and Research, 65 : 15-
Tavakkoli, H., Rajabipour, A., and Mohtasebi, S.S. 2009. Moisture dependent some engineering properties of soybean grains. Agricultural Engineering International: The CIGR Ejournal 1110. Vol. XI.
