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Effect of Vacuum Frying Conditions on Quality of French Fries and Frying Oil

Esra Devseren, Dilara Okut, Mehmet Koç, Özgül Özdestan Ocak, Haluk Karataş, Figen Kaymak-Ertekin

Abstract


Vacuum frying conditions were investigated with respect to physical, chemical and sensorial properties of French fries and frying oil, besides determining the effect of frying conditions in terms of frying temperature and time. In order to determine the optimum frying conditions of the French fries optimization study was carried out according to Central Composite Rotatable Design. The results were evaluated to determine optimum vacuum frying conditions targeting minimum oil content, 30–45 N in range of hardness, minimum acrylamide content and maximum overall preference. The optimum vacuum frying condition was selected as 124.39 °C of frying temperature and 8.36 min of frying time for French fries. The French fries obtained at optimum conditions for vacuum frying preserved the desired color, textural properties and flavor and it has low oil content and reduced acrylamide formation. In addition, the frying oil quality was preserved with vacuum frying.


Keywords


French fries; vacuum frying; browning index; hardness; acrylamide; microstructure

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DOI: http://dx.doi.org/10.17344/acsi.2020.5886

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Copyright (c) 2020 Esra Devseren, Dilara Okut, Mehmet Koç, Özgül Özdestan Ocak, Haluk Karataş, Figen Ertekin

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