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Effect of ultrasound power on physicochemical and rheological properties of yoghurt drink produced with thermosonicated milk
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Date
2016-04-01
Author
Gursoy, Oguz
Yilmaz, Yusuf
Gokce, Ozge
Ertan, Kübra
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The aim of the study was to determine the effect of ultrasound power on some selected quality parameters of yogurt drink produced with thermosonicated milk. Ultrasonication treatments for raw milk samples preheated to 70 degrees C were carried out at different ultrasound powers (100, 125 and 150W): Yogurt drinks were produced with milk samples processed with thermosonication or conventional heating (10 min at 90 degrees C). Thermosonication treatment did not influence proximate composition and color properties of samples; however, it decreased serum separation values significantly while increasing apparent viscosity values at higher ultrasound power. Rheological measurements indicated that all yogurt drink samples exhibited a non-Newtonian behavior. In conclusion, thermosonication treatment could be successfully used in the production of yoghurt drink and improve its major quality parameters such as delayed serum separation and increased apparent viscosity.
Subject Keywords
Serum separation
,
Thermosonication
,
Ultrasound
,
Viscosity
,
Yoghurt drink
URI
https://hdl.handle.net/11511/32052
Journal
EMIRATES JOURNAL OF FOOD AND AGRICULTURE
DOI
https://doi.org/10.9755/ejfa.2015-09-719
Collections
Graduate School of Natural and Applied Sciences, Article
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O. Gursoy, Y. Yilmaz, O. Gokce, and K. Ertan, “Effect of ultrasound power on physicochemical and rheological properties of yoghurt drink produced with thermosonicated milk,”
EMIRATES JOURNAL OF FOOD AND AGRICULTURE
, pp. 235–241, 2016, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32052.