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Original Articles

Analysis of acrylamide by LC-MS/MS and GC-MS in processed Japanese foods

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Pages 215-220 | Published online: 10 Nov 2010
 

Abstract

Acrylamide concentrations in processed foods (63 samples covering 31 product types) from Japan were analysed by LC-MS/MS and GC-MS methods. The limit of detection and limit of quantification of acrylamide were 0.2 ng ml -1 (6 fmol) and 0.8 ng ml-1 (22 fmol), respectively, by LC-MS/MS, and those of 2,3-dibromopropionamide derived from acrylamide were 12 ng ml-1 (52 fmol) and 40 ng ml-1 (170 fmol), respectively, by GC-MS. Repeatability given as RSD was <5 and <15% for the LC-MS/MS and GC-MS methods, respectively. High correlation (r2 = 0.946) was observed between values obtained by the two methods. Most potato crisps and whole potato-based fried snacks showed acrylamide concentrations >1000 μg kg-1. The concentrations in non-whole potato-based snacks, rice crackers processed by grilling or frying, and candied sweet potatoes were lower compared with those in the potato crisps and the whole potato-based fried snacks. One of the whole potato-based fried snacks, however, showed low acrylamide concentration (<50 μg kg-1) suggesting the formation of acrylamide is strongly influenced by processing conditions. Acrylamide concentrations in instant precooked noodles and won-tons were <100 μg kg-1 with only one exception. Roasted barley grains for ‘Mugi-cha’ tea contained 200–600 μg kg-1 acrylamide.

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