DETERMINATION OF FLOW AND VISCOELASTIC PROPERTIES OF THE KYRGYZ ETHNIC FOOD “SÜZMÖ” DEPENDING ON TEMPERATURE AND MOISTURE CONTENT

Yıl 2021, Cilt: 22 Sayı: 2, 199 - 205, 15.10.2021

Janyl Iskakova Jamila Smanalieva

https://doi.org/10.23902/trkjnat.925710

Cited By: 1

Öz

Consumer interest in concentrated protein-rich food is growing. Kyrgyz traditional food Süzmö, which is a highly viscous dairy product that is produced from fermented milk Ayran, needs to be introduced into the dairy industry. In this study, the rheological parameters of this indigenous food product were investigated in steady and dynamic rheological experiments. The flow behaviours of Süzmö were evaluated at six temperatures (20, 30, 40, 50, 60, and 70°C) and suitable rheological models were found. The flow curves of Süzmö at investigated temperatures have the yield stress (τ0) values between 32.64 Pa and 285.87 Pa. The flow properties of Süzmö samples at 20 and 30°C correspond to the Bingham model. The Casson model was suitable for describing flow curves at 40, 50, 60, and 70°C with correlation coefficients R=0.9506 ‒ 0.9973. The effective viscosity (ƞeff) of Süzmö decreased from 15.88 to 0.26 Pa·s with increasing temperature from 20 and 70°C. The effect of temperature on the viscosity corresponds to the Arrhenius relationship. The calculated activation energy was 61.66 kJ/(mol). A linear model was defined taking into account the influence of moisture content (p>0.05) on effective viscosity (ƞeff) and yield stress (τ0). A temperature-sweep was performed at 20 to 80°C to determine the thermal denaturation of the fermented milk samples. The measured parameters are essential for the industrial production of Süzmö and other concentrated fermented milk products.

Anahtar Kelimeler

Fermented food, paste, rheological properties, viscosity, flow activation energy

Kaynakça

• 1. AACC. 2019. Official Methods of Analysis, 21st Edition - AOAC International.
• 2. Abu-Jdayil, B., Jumah, R. & Shaker, R. 2002. Rheological properties of a concentrated fermented product, labneh, produced from bovine milk: Effect of production method. International Journal of Food Properties, 5(3): 667-679.
• 3. Abu-Jdayil, B., Shaker, R. & Jumah, R.2000. Rheological behavior of concentrated yogurt (Labneh). International Journal of Food Properties, 3(2): 207-216.
• 4. Abu-Jdayil, B. & Mohameed, H. 2002. Experimental and modelling studies of the flow properties of concentrated yogurt as affected by the storage time. Journal of Food Engineering, 52(4): 359-365.
• 5. Alirezalu, K., Inácio, R. S., Hesari, J., Remize F., Nematia, Z., Saraiva, J. A., Barba, F.J, Sant'Ana, A. S. & Lorenzo, J.M. 2019. Nutritional, chemical, syneresis, sensory properties and shelf life of Iranian traditional yoghurts during storage. LWT - Food Science and Technology, 114: 108417.
• 6. Aryama, M, Nöbel, S. & Hinrichs, J. 2016. Post-processing of fermented milk to stirred products: Reviewing the effects on gel structure. Trends in Food Science and Technology, 54: 26-36.
• 7. Atamian, S., Olabi, A., Kebbe Baghdadi, O. & Toufeili, I. 2014. The characterization of the physicochemical and sensory properties of full-fat, reduced-fat and low-fat bovine, caprine, and ovine Greek yogurt (Labneh). Food Science and Nutrition, 2(2): 164-173.
• 8. Benezech, T. & Maingonnat, J.F. 1994. Characterization of the rheological properties of yoghurt-A review. Journal of Food Engineering, 21(4): 447-472.
• 9. Costa, M.F., Pimentel, T.C., Guimaraes, J.T., Balthazar, C.F., Rocha, R.S., Cavalcanti, R.N., Esmerino, E.A., Freitas, M.Q., Raices, R.S.L., Silva, M.C. & Cruz, A.G. 2019. Impact of prebiotics on the rheological characteristics and volatile compounds of Greek yogurt. LWT - Food Science and Technology, 105: 371-376.
• 10. Fischer, P. & Windhab, E.J. 2011. Rheology of food materials. Current Opinion in Colloid & Interface Science, 16(1): 36-40.
• 11. Goh, E.G. 2010. The hidden property of Arrhenius-type relationship: viscosity as a function of temperature. Journal of Physical Science, 21(1): 29-39.
• 12. Güler, Z. & Şanal, H. 2009. The essential mineral concentration of Torba yoghurts and their wheys compared with yoghurt made with cows’, ewes’ and goats’ milks. International Journal of Food Sciences and Nutrition, 60(2): 153-164.
• 13. Huth, P.J., DiRienzo, D.B. & Miller, G.D. 2006. Major Scientific Advances with Dairy Foods in Nutrition and Health, Journal of Dairy Science, 89(4): 1207-1221.
• 14. Iskakova, J., Smanalieva, J., Kulmyrzaev, A., Fischer, P. & Methner, F.-J. 2017. Comparison of rheological and colorimetric measurements to determine α-amylase activity for malt used for the beverage Bozo. International Journal of Food Properties, 20(9): 2060-2070.
• 15. Iskakova, J., Smanalieva, J. & Methner, F.-J. 2019. Investigation of changes in rheological properties during processing of fermented cereal beverages. Journal of Food Science and Technology, 56(9): 3980-3987.
• 16. Iskakova, J. & Smanalieva, J. 2020. Investigation of rheological behavior of Kyrgyz traditional food Sary mai. Manas Journal of Engineering, 8(2): 84-89.
• 17. Juszczak, L., Oczadły, Z. & Gałkowska, D. 2013. Effect of modified starches on rheological properties of ketchup. Food and Bioprocess Technology, 6(5): 1251-1260.
• 18. Kabak, B. & Dobson, A.D.W. 2011. An introduction to the traditional fermented foods and beverages of Turkey. Critical Reviews in Food Science and Nutrition, 51(3): 248-260.
• 19. Kamber, U. 2008. The manufacture and some quality characteristics of kurut, a dried dairy product. International Journal of Dairy Technology, 61(2): 146-150.
• 20. Karlsson, A.O., Ipsen, R., Schrader, K. & Ardo, Y. 2005. Relationship between physical properties of casein micelles and rheology of skim milk concentrate. Journal of Dairy Science, 88: 3784-3797.
• 21. Krokida, M. K., Maroulis, Z.B. & Saravacos, G.D. 2001. Rheological properties of fluid fruit and vegetable puree products: compilation of literature data, International Journal of Food Properties, 4(2): 179-200.
• 22. Ozer, B. 2006 Production of concentrated products. Pp. 128-155. In: Tamime (ed): Fermented milks. Blackwell Publishing Ltd Oxford, United Kingdom, 250 pp.
• 23. Lee, W.J. & Lucey, J.A. 2004. Structure and physical properties of yogurt gels: effect of inoculation rate and incubation temperature. Journal of Dairy Science, 87(10): 3153-3164.
• 24. Liu, S., Han, Y. & Zhou, Z. 2011. Lactic acid bacteria in traditional fermented Chinese foods. Food Research International, 44(3): 643-651.
• 25. Liu, W.J., Sun, Z.H., Zhang, Y.B., Zhang, C.L., Menghebilige, Yang, M., Sun, T.S., Bao, Q.H., Chen, W. & Zhang, H.P. 2012. A survey of the bacterial composition of kurut from Tibet using a culture-independent approach. Journal of Dairy Science, 95(3): 1064-1072.
• 26. Mohameed, H.A., Abu-Jdayil, B. & Al-Shawabkeh, A. 2004. Effect of solids concentration on the rheology of labneh (concentrated yogurt) produced from sheep milk. Journal of Food Engineering, 61(3): 347-352.
• 27. Nsabimana, C., Jiang, B. & Kossah, R. 2005. Manufacturing, properties and shelf life of labneh: a review, International Journal of Dairy Technology, 8: 129-137.
• 28. Ozer, B.H., Bell, A.E., Grandison, A.S. & Robinson, R.K. 1998. Rheological properties of concentrated yoghurt (Labneh). Journal of Texture Studies, 29(1): 67-79.
• 29. Ozer, B. 2006. Production of concentrated products. Pp. 128-155. In: Tamime (ed): Fermented milks. Blackwell Publishing Ltd Oxford, United Kingdom, 250 pp.
• 30. Ozer, B.H., Stenning, R.A., Grandison, A.S. & Robinson, R.K. 1999. Rheology and microstructure of Labneh (Concentrated Yogurt). Journal of Dairy Science, 82(4): 682-689.
• 31. Phadungath, C. 2015. Greek-style yogurt and its application in cheesecake. International Journal of Food Engineering, 1: 13-17.
• 32. Reddy, C.S. & Datta, A.K. 1994. Thermophysical properties of concentrated reconstituted milk during processing. Journal of Food Engineering, 21(1): 31-40.
• 33. Sauer, A., Doehner, I. & Moraru, C.I. 2012. Steady shear rheological properties of micellar casein concentrates obtained by membrane filtration as a function of shear rate, concentration, and temperature. Journal of Dairy Science, 95(10): 5569-5579.
• 34. Sharoba, A.M., Senge, B., El-Mansy, H.A., Bahlol, H.E. & Blochwitz, R. 2005. Chemical, sensory and rheological properties of some commercial German and Egyptian tomato ketchups. European Food Research and Technology, 220(2): 142-151.
• 35. Smanalieva, J. & Senge, B. 2009. Analytical and rheological investigations into selected unifloral German honey. European Food Research and Technology, 229(1): 107-113.
• 36. Steffe, J.F. 1996. Rheological methods in food process engineering. Second Edition. Freeman Press, East Lansing, 428 pp.
• 37. Tamime, A.Y. & Robinson, R.K. 2007. Historical background. Pp.1-12. In: Tamime, A.Y. & Robinson, R.K. (eds). Tamime and Robinson’s Yoghurt: Science and Technology. Woodhead Publishing Limited, Boca Raton, 791 pp.
• 38. Vélez-Ruiz, J.F. & Barbosa-Cánovas, G.V. 2000. Flow and structural characteristics of concentrated milk. Journal of Texture Studies, 31(3): 315-333.