Modeling of Rheological Characteristics of “MalasYazdi” (Punicia granatum L.) Pomegranate Juice

Authors
S. Bodbodak 1
M. Kashaninejad 1
M. Kashaninejad 1
J. Hesari 2
S. M. A. Razavi 3
1 Department of Food Science and Technology, Gorgan University of Agricultural Sciences and Natural Resources, P.O. Box: 49138-15739, Gorgan, Islamic Republic of Iran.
2 Department of Food Science and Technology, Faculty of Agriculture, Tabriz University, P.O. Box: 51666, Tabriz, Islamic Republic of Iran.
3 Department of Food Science and Technology, Ferdowsi University, P.O. Box: 91775-1163, Mashhad, Islamic Republic of Iran.
Abstract
Flow characteristics and rheological parameters of “Malas Yazdi” pomegranate (Punica granatum L.) juice were investigated using rotational viscometer at different temperatures (10, 20, 30, 40, 50, 60 and 70ºC) and concentrations (12, 22, 32, 42 and 52º Brix). The experimental data had the best fitness with Herschel-Bulkley model and the values of flow behavior index (n) varied between 0.97 and 1.45 at all temperatures and concentrations, revealing the shear thickening nature of pomegranate juice. The activation energy of flow (Ea) calculated with respect to apparent viscosity at 40 rpm increased from 9.07 to 24.05 kJ mol-1 as the juice concentration increased from 12 to 52º Brix. Power equation indicated that consistency coefficient increased non-linearly with concentration increase. A mathematical model was developed to describe the influence of temperature and soluble solids on the consistency coefficient of pomegranate juice for the studied conditions.

Keywords

1. Alighourchi, H. and Barzegar, M. 2009. Some Physicochemical Characteristics and Degradation Kinetic of Anthocyanin of Reconstituted Pomegranate Juice during Storage. J. Food Eng., 90: 179–185.
2. Alpaslan, M. and Hayta, M. 2002. Rheological and Sensory Properties of Pekmez (Grape Molasses/Tahin) (Sesame Paste Blends). J. Food Eng., 54: 89–93.
3. Arslan, E., Yener, M. E. and Esin, A. 2005. Rheological Characterization of Tahin/Pekmez(Sesame Paste/Concentrated Grape Juice) Blends. J. Food Eng., 69: 167–172.
4. Barbosa-Canovas, G. V., Kokini, J. L., Ma, L. and Ibarz, A. 1996. The Rheology of Semi Liquid Foods. Adv. Food Nut. Res., 39: 1–69.
5. Bodbodak, S., Hesari, J., Kashaninejad, M., and Razavi, S. M. 2010. Effects of Different Clarification Treatment with Filter Aids on Physicochemical and Rheological Characteristics of Pomegranate Juice. J. Food Proc. Pres., 1(2): 81-98. (in Farsi)
6. Costaldo, D., Plamer, L., Lo Voi A. and Costabile, P. 1990. Rheological Characterization of Purees and Concentrates of Babaco. In: "Physical Properties of Process Control" (Eds.): Spiess, W. E. L. and Schubert, H.. Engineering and Food Vol. 1, Elsevier Science Publishers, London., PP. 143-150.
7. Dhandar, D. G. and Singh, D. B. 2002. Current Status and Future Needs for the Development of Pomegranate. National Horticulture Conference, New Delhi, India, PP. 12.
8. Ditchfield, C., Tadini, C. C., Singh, R. and Toledo, R. T. 2004. Rheological Properties of Banana Puree at High Temperatures. Int. J. Food Prop., 7(3): 571–584.
9. Ewaida, E. H. 1987. Nutrient Composition of Taifi Pomegranate (Punica granatum L.) Fragments and Their Suitability for the Production of Jam. Arab Gulf J. Sci. Res. Agri. Biol. Sci., B5(3): 367–378 .
10. Giner, J., Ibarz, A., Garza, S. and Xhian-Quan, S. 1996. Rheology of Clarified Cherry Juices. J. Food Eng., 30: 147–154.
11. Ibarz, A., Pagan, J. and Miguelsanz, R. 1992. Rheology of Clarified Fruit Juices. II. Blackcurrant Juices. J. Food Eng., 15: 63–73.
12. Kaya, A. and Beliba_glı, K. B. 2002. Rheology of Solid Gaziantep Pekmez. J. Food Eng., 54: 221–226.
13. Marcotte M., Hoshahili, A. R. and Ramaswamy, H. S. 2001. Rheological Properties of Selected Hydrocolloids as a Function of Concentration and Temperature,” J. Food Eng., 34: 695–703.
14. Magerramov, M. A., Abdulagatov, A. I., Azizov, N. D. and Abdulagatov, I. M. 2007. Effect of Temperature, Concentration, and Pressure on the Viscosity of Pomegranate and Pear Juice Concentrates. J. Food Eng., 80: 476–489.
15. Memnune, S., Fatih, M. E., Mustafa, S. and Yavuz, Y. 2007. Rheological Characteristics of Carob Pekmez. Int. J. Food Prop., 10: 39–46.
16. Molwane, S. D. and Gunjal, B. B. 1985. Viscometric Characteristics of Cold-break and Hot-break Extracted Tomato Juice Concentrates. J. Food Sci. Tech., 22: 353–357.
17. Patil A.V. and Karade, A.R. 1996. In Fruits: Tropical and Subtropical. (Eds.): Bose, T. K. and Mitra, S. K., Naya Prakash, Calcutta, India, PP. 234-246.
18. Rha, C., 1975. Theories and Principles of Viscosity. In: "Theory: Determination and Control of Physical Properties of Food Materials", (Ed.): Rha, C.. Reidel, Dordrecht, The Netherlands, PP. 7-24.
19. Rao, L. K., Eipeson, W. E., Rao, S. P. N., Patwardhan, M. V. and Ramanathan, P. K. 1984. Rheological Properties of Mango Pulp and Concentrates. J. Food Sci. Tech., 22: 30–33.
20. Rao, M. A. 1999. Rheology of Fluids and Semi-solid Foods. Aspen Publishers, Gaithersburg, PP. 127-138.
21. Rao, M. A. and Rizvi, S. S. H. 1986. Engineering Properties of Foods. Marcel Dekker, New York, USA, PP. 78-83.
22. Rao, M. A. and Anantheswaran, R. C. 1982. Rheology of Fluid in Food Processing. Food Tech., 36(2): 116–126.
23. Sadeghi, N., Jannat, B. M., Oveisi, R., Hajimahmoodi, M. and Photovat, M. 2009. Antioxidant Activity of Iranian Pomegranate (Punica granatum L.) Seed Extracts. J. Agr. Sci. Tech., 11: 633-638.
24. Saracavos, G. D. 1970. Effect of Temperature on Viscosity of Fruit Juices and Purees. J. Food Sci., 35: 122–125.
25. Steffe, J. F. 1996. Rheological Methods in Food Process Engineering. Freeman Press, East Lansing, USA, PP. 2-49.
26. Tehranifar, A., Zarei, M., Nemati, Z., Esfandiyari, B. and Vazifeshenas, M. R. 2010. Investigation of Physic-chemical Properties and Antioxidant Activity of Twenty Iranian Pomegranate (Punica granatum L.) Cultivar. Scientia Horticulturae, 126(2): 180-185.
27. Turfan, O., Turkyilamz, M., Yemish, O. and Ozkan, M. 2011. Anthocyanin and Colour Changes during Processing of Pomegranate (Punica granatum L., cv. Hicaznar) Juice from Sacs and Whole Fruit. Food Chem., 129(4): 1644-1651.
28. Vergnes, B. and Villemarie, J. P.1987. Rheological Behaviour of Low Moisture Molten Maize Starch. Rhe. Acta, 26: 570–576.
29. Yanniotis, S., Skaltsi, S. and Karaburnioti, S. 2006. Effect of Moisture Content on the Viscosity of Honey at Different Temperatures. J. Food Eng., 72: 372–377.
30. Yasoubi, P., Barzegar, M., Sahari, M. A. and Azizi, M. H. 2007. Total Phenolic Contents and Antioxidant Activity of Pomegranate (Punica granatum L.) Peel Extracts. J. Agric. Sci. Technol., 9: 35-42.
Journal of Agricultural Science and Technology
Volume 15, Issue 5
September and October 2013
Pages 961-971