Ground samples (5 g) were dissolved in 50 mL hot water and filtered using 0.45 mm Whatman filter paper.
Solid Phase Extraction (SPE) C18 column was conditioned using 3 mL acetone and 3 mL formic acid.
Filtered sample was applied to SPE tube at which the sample solution is allowed to pass through tube with
gravity flow. SPE tube was washed using 2 mL distilled water and vacuum was used for 2 minutes to dry the
excess water. Sample was eluted using 3 mL acetone. The eluted sample was filtered using 0.45 μL syringe
filter and kept at -20o
C until further GC-FID analysis. Analysis of acrylamide was carried out using Gas
Chromatography (Shimadzu 2010) equipped with Flame Ionization Detector with a temperature 260°C. RTX-
5 column (30m x 0.25mm I.D. x 0.25 μm film thickness) was used with injector temperature of 260°C, helium
gas at constant pressure as carrier gas, and with oven temperature of 100 °C (hold 0.5 min) to 200°C at
15°C/minute [