Determination of heat transfer coefficient during high pressure frying of potatoes
Author
Summary, in English
Besides traditional atmospheric frying, high pressure (super-atmospheric) frying might be an alternative approach to the frying of food products. In this study, convective heat transfer coefficient during atmospheric and high pressure frying was compared. For this purpose, a pressure cooker was modified to allow the immersion of a sample into frying oil under pressure and temperature measurement of sample and oil. Heat transfer coefficient versus frying time was determined on potato slabs using changes of total mass of the experimental set-up. At the pressure of 2 bar, the results showed an almost doubled heat transfer coefficient compared to the atmospheric pressure frying. The knowledge of heat transfer coefficient during pressure frying is expected to allow accurate determination of temperature distribution and hence the kinetic calculations to lead to development of an alternative frying process. All rights reserved. (C) 2009 Elsevier Ltd.
Department/s
- Department of Food Technology, Engineering and Nutrition
Publishing year
2010
Language
English
Pages
528-532
Publication/Series
Journal of Food Engineering
Volume
96
Issue
4
Document type
Journal article
Publisher
Elsevier
Topic
- Food Engineering
Keywords
- Potatoes
- Heat transfer coefficient
- Frying
- High pressure frying
Status
Published
ISBN/ISSN/Other
- ISSN: 0260-8774