Use of Dialysis and Liquid–Liquid Extraction for the Determination of Propionic Acid by Gas Chromatography

DOI JASI Web Site Web Site PubMed 1 Citations 5 References

Bibliographic Information

Other Title
  • 透析および液液抽出を用いた食品中プロピオン酸のGC分析
  • トウセキ オヨビ エキエキ チュウシュツ オ モチイタ ショクヒン チュウ プロピオンサン ノ GC ブンセキ

Search this article

Abstract

<p>A simple and efficient method for the determination of propionic acid (PA) in foods was developed. The sample was cleaned up by dialysis, and PA in the resulting solution was extracted into ethyl acetate for GC analysis. Sodium sulfate was used as a salting-out agent in the extraction process, and GC-FID and GC-MS were successfully applied to the determination and confirmation of PA, respectively. The recoveries were in the range of 98.9–104.4% at the addition level of 0.2 g/kg from 6 foods, bread, cake, cheese, worcester sauce, vinegar-pickles and yogurt. To evaluate the performance of the developed method, recoveries from bread, cake and cheese were compared with those of the notified method at the maximal allowable addition level of PA as a preservative for each food. Recoveries of 98.2–99.5% for the developed method and 91.2–92.0% for the notified method were obtained. The analytical limit was 0.1 g/kg in samples for both determination and confirmation.</p>

Journal

Citations (1)*help

See more

References(5)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top