Development of a sensitive and rapid method for determination of acrylamide in bread by LC-MS/MS and analysis of real samples in Iran

Document Type : Research article

Authors

1 Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

2 Department of Medicinal Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

3 Phytochemistry Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

4 Department of Toxicology and Pharmacology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Abstract

A new sample preparation procedure and a liquid chromatography–tandem mass spectrometry (LC–MS/MS) method were developed for the quantitative analysis of acrylamide in bread. The method is based on sample extraction in methanol, purification with Carrez solutions and clean up with Primary Secondary Amine (PSA).The developed method offers an efficient, inexpensive, easy sample preparation and very sensitive procedure for determination of acrylamide in bread. The use of spiked calibration curves for constructing the calibration curve substantially reduced adverse matrix-related effects. Recoveries were between 96 and 105.3%. Good results were obtained with respect to repeatability (RSDs <11%). The limit of detection and quantification of the method was 0.3 and 1 ng/g, respectively, which shows the method is very sensitive. The developed method was used for the determination of acrylamide in 26 traditional bread samples (Sangak) collected from Shiraz. The results showed that about 96 % of Sangak bread samples were contaminated with acrylamide that 64.3 and 33.3 of semi-industrial and traditional Sangak bread were higher than benchmark levels (50µg/kg), respectively. There are a few reports concerning contamination of Sangak bread samples with acrylamide in Iran. Therefore, this method could be used for a comprehensive survey of acrylamide in Sangak bread samples in the country.

Graphical Abstract

Development of a sensitive and rapid method for determination of acrylamide in bread by LC-MS/MS and analysis of real samples in Iran

Keywords

Main Subjects


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