Medicine, Health & Food
Publisher Name: IJRP
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|1||Kamweru Paul Kuria|
An ideal elastic material will deform finitely and recover its original shape and size upon the removal of the applied deforming load. On the other hand an ideal fluid will deform and continue to deform as long as the deforming load is applied, and finally the material doesn’t recover from that deformation even when the load is removed. These two responses are termed as ‘elastic’ and ‘viscous’ respectively. Most materials, exhibits an intermediate viscous and elastic behavior and are referred to as “viscoelastic”. A good example of such materials is polymers. In addition, almost all foods, both liquid and solid, belong to this group. The viscoelasticity of materials can be determined by transient or dynamic methods. The transient methods are two-pronged; stress relaxation which is the application of constant and instantaneous strain and measuring decaying stress with respect to time and creep which is the application of constant and instantaneous stress and measuring increasing strain with time. The transient methods are easy to perform, however, they are limited in the sense that the material response cannot be determined as a function of frequency. The dynamic methods are performed applying a small sinusoidal strain (or stress) and measuring the resulting stress (or strain). Due to the enormous list of advantages of performing dynamic tests, the method has been very popular in polymer studies for many years. This brief review demonstrates that the method has found a now increasing usage, especially in the last two decades, in studies of food, what has been referred to as Food Rheology.
Yoo, B. (2004). Effect of temperature of dynamic rheology of Korean honeys. Journal of Food Engineering. 65, 459–463.
Ma, Z., Boye, J.I., Simpson, B.K., Prasher, S.O., Monpetit, D. and Malcolmson, L. (2011): Thermal processing effects on the functional properties and microstructure of lentil, chickpea, and pea flours. Food Res. Inter. In press, DOI: 10.1016/j.foodres.2010.12.017
Barnes H. A. (2001). “Industrial Food Processing: Experiments and Numerical Simulation”, University of Plymouth, Institute of Non-Newtonian Fluid Mechanics and British Society of Rheology.
Rao M. A. (1992). Rev. Esp. Cienc. Tecnol. Aliment. 32. 3-17.
Rao, M. A., & Cooley, H. J. (1992). Rheological behavior of tomato pastes in steady and dynamic shear. Journal of Texture Studies. 23, 415–425.
Figura and Teixeira (2007)
Ahmed J., Ramaswamy H.S., Kasapis S. and Boye J. I. (2010). Novel Food Processing. Effects on Rheological and Functional Properties. NW: CRC Press Taylor & Francis Group
Steffe J. F. (1996). Rheological methods in food processing engineering. Mich.: Freemann Press. p 418.
Day L, Xu M, Oiseth SK, Lundin L, Hemar Y. 2010. Dynamic rheological properties of plant cell-wall particle dispersions. Colloid Surface B. 81(2):461–7.
Moelants K. R. N., Cardinaels R., Buggenhout S., Loey A. M. V., Moldenaers P., and Hendrickx M. E. (2014) A Review on the Relationships between Processing, Food Structure, and Rheological Properties of Plant-Tissue-Based Food Suspensions. Comprehensive Reviews in Food Science and Food Safety. 13. 216-240
Rao, V. N. M., and X. Quintero. 2005. Rheological properties of solid foods. In Engineering Properties of Foods, edited by M. A. Rao, S. S. H. Rizvi and A. K. Datta. pp. 101–147, Boca Raton and New York: CRC Press.
Kohajdová Z., Karovicová J. and Magala M. (2013). Rheological and qualitative characteristics of pea flour incorporated cracker biscuits. Croat. J. Food Sci. Technol. 5 (1) 11-17.
Gunasekaran, S., and Ak, M. M. (2000). Dynamic oscillatory shear testing of foods—selected applications. Trends in Food Science and Technology. 11, 115–127.
TA Instruments. Thermal Analysis Application Brief Dynamic Mechanical Analysis of Food Products. Thermal Analysis & Rheology. http://www.tainst.com
Ahmed J. and Ramaswamy H. S. (2006). Viscoelastic properties of sweet potato puree infant food. Journal of Food Engineering. 74. 376–382.
Li, J.Y. and Yeh A.I. (2001). Relationships between thermal, rheological characteristics and swelling power for various starches. Journal of Food Engineering. 50. 141-148
Dhinda, F., Lakshmi, J. A., Prakash, J., Dasappa, I. (2011): Effect of ingredients on rheological, nutritional and quality characteristics of high protein, high fiber and low carbohydrate bread. Food Bioprocess Technol. In press DOI:10.1007/s11947-011-0752-y.
Rao and Coolex
Berland, S. and Launay, B. (1995) `Rheological Properties of Wheat Flour Doughs in Steady and Dynamic Shear: Effect of Water Content and Some Additives' in Cereal Chem. 72, 48-52
Gunasekaran S. and Mehmet A.M. (2000) Dynamic oscillatory shear testing of foods- selected applications.Trends in Food Science & Technology. 11 115-127.
Yu, C., & Gunasekaran, S. (2001). Correlation of dynamic and steady flow viscosities of food materials. Applied Rheology. 11, 134–140.
Rosalina, I., and Bhattacharya, M. (2002). Dynamic rheological measurements and analysis of starch gels. Carbohydrate Polymers. 48, 191–202.
Chamberlain, E.K. and Rao, M.A. (2000) `Rheological Properties of Acid Converted Waxy Maize Starches' in Carbohydr. Polym. 40, 251-260
Albano K. M., Franco C. M. L. and Vania Telis (2014). Rheological behavior of Peruvian carrot starch gels as affected by temperature and concentration. Food Hydrocolloids 40:30–43 · October 2014. DOI: 10.1016/j.foodhyd.2014.02.003
Roulet P., MacInnes, W.M., Wuersch P., Sanchez R.M., and Raemy A., (1988). A Comparative Study of the Retrogradation Kinetics of Gelatinized Wheat Starch in Gel and Powder Form using X-rays, Differential Scanning Calorimetry, and Dynamic Mechanical Analysis. Food Hydrocolloids. 2(5), p381-396 (1988).
Doraiswamy, D., Mujumdar, A.N., Tsao, I., Beris, A.N., Danforth, S.C. and Metzner, A.B. (1991) `The Cox-Merz Rule Extended: A Rheological Model for Concentrated Suspensions and Other Materials with a Yield Stress'. J. Rheol. 35, 647-685
Carrillo-Navas H., Hernández-Jaimes C., Utrilla-Coello R.G., Meraz M., Vernon-Carter E.J., Alvarez-Ramirez J. (2014). Viscoelastic relaxation spectra of some native starch gels. Food Hydrocolloids 37. 25-33
Vittadini E. and Vodovotz Y. (2003). Changes in the Physicochemical Properties of Wheat- and Soy-containing Breads during Storage as Studied by Thermal Analyses. Journal of Food Science 68 (6).
Giménez, M.A., Drago, S.R., De Greef, D., Gonzalez, R.J., Lobo, M.O. and Samman, N.C. (2012): Rheological, functional and nutritional properties of wheat/broad bean (Vicia faba) flour blend for pasta formulation. Food Chem. 134 (1), 200-206.
Bahnassey, Y., Khan, K. (1986): Fortification of spaghetti with edible legumes. II. Rheological, processing and quality evaluation studies. Cereal Chem. 63 (3), 216-219.
Eissa, A., Hussein, A.S., and Mostafa, B. E. (2007): Rheological properties and quality evaluation of Egyptian balady bread and biscuits supplemented with flours of ungerminated and germinated legume seeds or mushroom. Polish J. Food Nutr. Sci. 57 (4), 487-496.