Effect of amino acids and frequency of reuse frying oils at different temperature on acrylamide formation in palm olein and soy bean oils via modeling system

• Published in: Food chemistry Vol. 245; pp. 1 - 6
• Main Authors: Daniali, G., Jinap, S., Sanny, M., Tan, C.P.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 15-04-2018
• Subjects: Acrylamide; Asparagine; Deep-frying; Frying-oil; Glutamine; Asparagine; Acrylamide; Frying-oil; Deep-frying; Glutamine
• ISSN: 0308-8146; 1873-7072
• DOI: 10.1016/j.foodchem.2017.10.070

•All amino acids can be used as a nitrogen source of acrylamide producer.•The highest amount of acrylamide was produced from asparagine.•Direct correlation was found between time, temperature and amount of acrylamide.•Correlation between amount of acrylamide and temperature was higher than time.
This work investigated the underlying formation of acrylamide from amino acids in frying oils during high temperatures and at different times via modeling systems. Eighteen amino acids were used in order to determine which one was more effective on acrylamide production. Significantly the highest amount of acrylamide was produced from asparagine (5987.5µg/kg) and the lowest from phenylalanine (9.25µg/kg). A constant amount of asparagine and glutamine in palm olein and soy bean oils was heated up in modelling system at different temperatures (160, 180 and 200°C) and times (1.5, 3, 4.5, 6, 7.5min). The highest amount of acrylamide was found at 200°C for 7.5min (9317 and 8511µg/kg) and lowest at 160°C for 1.5min (156 and 254µg/kg) in both frying oils and both amino acids. Direct correlations have been found between time (R2=0.884), temperature (R2=0.951) and amount of acrylamide formation, both at p<0.05.