FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (24): 366-368.doi: 10.7506/spkx1002-6630-200924082

Previous Articles     Next Articles

Determination of Bromate in Flour Products by GC

LIAO Yan-zhi,YANG Dai-ming,ZHANG Ji-hong   

  1. Institute of Food Quality Supervision and Test of Hunan Province, Changsha 410002, China
  • Received:2009-01-08 Online:2009-12-15 Published:2010-12-29
  • Contact: LIAO Yan-zhi E-mail:xtulyz@hotmail.com

Abstract:

A sensitive method was developed for the determination of bromate in flour products by gas chromatography. Bromate was extracted with water from bread, noodle and flour samples in a ultrasonic bath for 30 min. After centrifugation, thesupernatant was further extracted by hexane and the upper organic layers were collected and filtered over 5 g of anhydrous Na2SO4. Recoveries of bromate from samples were in the range 80%-103%, and the limit of detection was 1.0 mg/kg. The results of the analysis can truly predict the addition of bromated in bread products and was capable of meeting the requirements for rapid and accurate detection.

Key words: potassium bromate, gas chromatography(GC), derivatization, bread

CLC Number: