with the collaboration of Iranian Food Science and Technology Association (IFSTA)

Document Type : Research Article-en

Authors

Ferdowsi University of Mashhad

Abstract

Sensory evaluation of food materials is an important factor to choose and even produce new formulations. Being time consuming, results in being difficult to interpret and the necessity to educate specialists make these methods kind of impractical. In this study, we have made an effort to introduce physical properties as a substitute for sensory evaluations in a semi solid food such as chocolate pudding. Higher reliability, reproducibility and higher pace are among some of the advantages of instrumental measurements. Thus, if sensory evaluation can be predicted based on physical properties solely, besides increasing the inspection pace, they would be available to be used online. The obtained results can also be used in designing new products for special consumers such as the dysphasia patients. The results showed that parameters such as shear viscosity, plastic viscosity, yield stress, extensional viscosity, apparent modulus and adhesive force can be used to design and produce new materials; they make sense beside each other though. In this way, the products which have been designed for the patients with swallowing difficulties should have suitable texture in mouth and also good swallow ease.

Keywords

Alexander, R. J. (1999). Hydrocolloid gums. Part I: Natural products. Cereal Foods World, 44: 684–687.
Alexander, R. M. (1998). News of chews: the optimization of mastication. Nature: 391, 329.
Anderson, D. M. W., &Andon, S. A. (1988). Water-soluble food gums andtheir role in product development. Cereal Foods World, 33: 844.
Arcia ,P.L., Costell, V., Tarrega, V. (2010). Thickness suitability of prebiotic dairy desserts: Relationship with rheological properties. Food Research International 43: 2409–2416.
Casas, J. A., Santosa, V. E., & Garcı´a-Ochoa, A. (2000). Xanthan gumproduction under several operational conditions: Molecular structure and rheological properties. Enzyme and Microbial Technology, 26: 282–291.
Chen, J. (2009). Food oral processes a review. Food Hydrocolloids, 23:1-25.
Chen, J., & Lolivret, L. (2011). The determining role of bolus rheology in triggering a swallowing. Food Hydrocolloids, 25: 325-332.
Dickinson, E. (2003). Hydrocolloids at interfaces and the influence on the properties of dispersed systems. Food Hydrocolloids, 17: 25–39.
Engelen, L., van der Bilt, A., Schipper, M. & Bosman, F. (2005). Oral size perception of particles: effect of size, type, viscosity and method. Journal of Texture Studies, 36, 373–386.
Hutchings, J. B., & Lillford, P. J. (1988). The perception of food textured the philosophy
of the breakdown path. Journal of Texture Studies, 19, 103-115.
Ishihara, S., Nakauma, M., Funami, T., Odake, S., & Nishinari, K. (2011a).Swallowing profiles of food polysaccharide gels in relation to bolus rheology. Food Hydrocolloids, 25: 1016-1024.
Ishihara, S., Nakauma, M., Funami, T., Odake, S., & Nishinari, K. (2011b).Viscoelastic and fragmentation characters of model bolus from polysaccharide gels after instrumental mastication. Food Hydrocolloids, 25: 1210-1218.
Jalabert-Malbos, M. L., Mishellany-Dutour, A., Woda, A., &Peyron, M. A. (2007). Particle size distribution in the food bolus after mastication of natural foods. Food Quality and Preference, 18:803-812.
Kohyama, K., Sasaki, T., & Hayakawa, F. (2008).Characterization of food physical properties by the mastication parameters measured by electromyography of the jaw-closing muscles and mandibular kinematics in young adults. Bioscience, Biotechnology, and Biochemistry, 72: 1690-1695.
Kokini,J.L., (1987).The physical basis of liquid food texture and texture-taste interactions. Journal of Food Engineering 6: 5l-81.
Kokini, J.L. & Cussler, E.L. (1987).The psychophysics of fluid food texture. In: Food Texture – Instrumental and Sensory Measurement (edited by H.R. Moskowitz). Pp. 97–127. New York, NY: Marcel Dekker.
Kumagai, H., Tashiro, A., Hasegawa, A., Kohyama, K., & Kumagai, H. (2009). Relationship between flow properties of thickener solutions and their velocity through the pharynx measured by the ultrasonic pulse Doppler method. Food Science and Technology Research, 15: 203-210.
Lucas, P. W., Prinz, J. F., Agrawal, K. R., & Bruce, I. C. (2002). Food physics and oral physiology. Food Quality and Preference: 13, 203-213.
Mathmann, K., Kowalczyk, W., Petermeier, H., Baars, A., Eberhardl, M. & Delgado, A. (2007).A numerical approach revealing the impact of rheological properties on mouthfeel caused by food. International Journal of Food Science and Technology.42: 739–745
Mioche, L., Bourdiol, P., Monier, S., Martin, J. F., & Cormier, D. (2004). Changes in jaw muscles activity with age: effects on food bolus properties. Physiology & Behavior: 621-627.
Mishellany-Dutour, A., Woda, A., Labas, R., & Peyron, M. A. (2006). The challenge of mastication: preparing a bolus suitable for deglutition. Dysphasia: 21: 87-94.
Peyron, M. A., Mishellany-Dutour, A., &Woda, A. (2004).Particle size distribution of food boluses after mastication of six natural foods. Journal of Dental Research, 83: 578-582.
Steffe, J.F., (1996). Rheological methods in food process Engineering. Second Edition. Freeman Press, USA.
Strassburg, J., Engmann, J., Burbidge, A.S., Hartmann, C. & Delgado, A. (2005). Sandigkeitsempfindung von Lebensmitteln im Mund– Ein fluidmechanisches Modell im Mikromassstab. Kurzfassung der Referate – Interne Arbeitssitzung des VDI-GVC-Fachausschusses ‘Lebensmittelverfahrenstechnik’, 7–9 March, Berlin.
Wood, F.W. (1968). Rheology and Texture of Foodstuffs, SCI Monograph, London
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