Ohmic heating behavior of certain selected liquid food materials

Kong, Yin-qui, Dong, Li, Wang, Li-jun, Bhandari, Bhesh R., Chen, Xiao Dong and Mao, Zhi-huai (2008) Ohmic heating behavior of certain selected liquid food materials. International Journal of Food Engineering, 4 3: 2.1-2.14. doi:10.2202/1556-3758.1378

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Author Kong, Yin-qui
Dong, Li
Wang, Li-jun
Bhandari, Bhesh R.
Chen, Xiao Dong
Mao, Zhi-huai
Title Ohmic heating behavior of certain selected liquid food materials
Journal name International Journal of Food Engineering   Check publisher's open access policy
ISSN 1556-3758
2194-5764
Publication date 2008-04
Sub-type Article (original research)
DOI 10.2202/1556-3758.1378
Open Access Status File (Publisher version)
Volume 4
Issue 3
Start page 2.1
End page 2.14
Total pages 14
Place of publication Berlin, Germany
Publisher Walter de Gruyter
Collection year 2009
Language eng
Abstract Ohmic heating is an alternative fast heating technique for food products, which takes its name from Ohm's law. The basic principle of ohmic heating is the conversion of electrical energy into heat, resulting in internal energy generation. In this study, an experimental ohmic heating unit was designed and fabricated. Four kinds of liquid food materials (tap water, fruit-vegetable juice, yogurt and 0.5% aqueous sodium chloride solution) were heated on this laboratory scale static ohmic heater to evaluate the device's performance. Different voltage gradients (7.5V/cm, 11.25V/cm, 15V/cm, 18.75V/cm, 22.5V/cm and 26.25V/cm) were applied to study the heating behavior of liquid food materials. Results indicated that the voltage gradient significantly influenced the ohmic heating rates for all four materials tested. The electrical conductivity also changed significantly with temperature.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article number 2

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Agriculture and Food Sciences
ERA 2012 Admin Only
 
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Created: Fri, 17 Apr 2009, 12:49:24 EST by Emma Cushworth on behalf of School of Land, Crop and Food Sciences