Heat transfer coefficient during super-atmospheric pressure
frying was determined for the first time in a direct comparison to
atmospheric frying in this study. Pressure frying was found to lead
to higher heat transfer coefficient values, but heat transfer was not
well predicted by a boiling heat transfer correlation due to the differences
in the dominating heat transfer mechanisms of frying and
boiling. The knowledge on the heat transfer coefficient during
pressure frying would allow accurate determination of temperature
distribution and hence the kinetic calculations for texture
development, color changes and formation of carcinogenic substances
(e.g., acrylamide) to lead to the development of alternative
frying processes.