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J Food Sci. 2015 May;80(5):T1120-8. doi: 10.1111/1750-3841.12843. Epub 2015 Apr 13.

Effect of pretreatments and air-frying, a novel technology, on acrylamide generation in fried potatoes.

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Inst. of Food Engineering for Development, Univ. Politècnica de València, P.O. Box 46022, Valencia, Spain.


This paper investigated the effect of air-frying technology, in combination with a pretreatment based of soaking the samples in different chemical agent solutions (citric acid, glycine, calcium lactate, sodium chloride, or nicotinic acid [vitamin B3]), on the generation of acrylamide in fried potatoes. The influence of reducing sugars on the development of surface's color was also analyzed. The experiments were conducted at 180 °C by means of air-frying and deep-oil-frying, as a reference technology. Based on the evolution of color crust with frying time, it could be concluded that the rate of Maillard reaction decreased as the initial reducing sugars content increased in the raw material, and was also lower for deep-oil-frying than for air-frying regardless of pretreatments applied. Air-frying reduced acrylamide content by about 90% compared with conventional deep-oil-frying without being necessary the application of a pretreatment. However, deep-oil fried potatoes pretreated with solutions of nicotinic acid, citric acid, glycine at 1%, and NaCl at 2% presented much lower acrylamide levels (up to 80% to 90% reduction) than nonpretreated samples.


acrylamide; additives; air-frying; color; reducing sugars

[Indexed for MEDLINE]

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