Journal
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
Volume 67, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ifset.2020.102553
Keywords
Potato chips; Pulsed electric field (PEF); Ultrasound; Frying; Heat and mass transfer; Bubble formation
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The study investigated the effects of PEF and US on the frying behavior of potato chips. By analyzing water vapor bubbles and bubble volume distribution, insights into heat and mass transfer were gained. The results demonstrate the impact on the frying process by combining PEF and US, providing potential optimization for chip production processes.
The effect of pulsed electric field (PEF) and ultrasound (US) on the frying behavior of potato chips was investigated. For this purpose, a special fryer with a window was designed to enable the investigation of water evaporation by the characterization of bubble formation during frying. The number of water vapor bubbles and the bubble volume distribution were analyzed in order to gain an insight into heat and mass transfer affected by PEF and US treatment. Quality parameters of the potato chips such as moisture, fat and acrylamide content were measured. Overall, the results of this study show for the first time impacting effects on the frying process that can be achieved by combining PEF as a volumetric cell disintegration technology and ultrasound as a mean to affect interface phenomena. The obtained results can be used to further optimize frying processes used for the production of chips and other products.
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