An improved method for the measurement of 3‐monochloropropanediol esters by matrix solid‐phase dispersion supported liquid–liquid extraction. (6th September 2017)

• Record Type: Journal Article
• Authors: Jiao, Bo; Hu, Hui; Shi, Aimin; Liu, Hongzhi; Liu, Li; Wang, Qiang; Fu, Wusheng; Adhikari, Benu
• Is Part Of: International journal of food science & technology. Volume 52:Number 11(2017)
• Page Start: 2404
• Page End: 2411
• Publication Date: 2017-09-06
• Subjects: 3‐Monochloropropanediol esters -- acid transesterification -- dispersed matrix solid‐phase supported liquid–liquid extraction -- edible oil; Food industry and trade -- Periodicals; 664
• DOI: 10.1111/ijfs.13524
• Languages: English
• ISSNs: 0950-5423

Abstract

Summary: 3‐Monochloropropanediol (3‐MCPD) esters are contaminants produced from the high‐temperature processing of edible oils. The accurate measurement of 3‐MCPD using an easy‐to‐follow and reliable method that uses a readily available instrument is important. Here, we report an acid transesterification heptafluorobutyrylimidazole (HFBI) derivatisation method for the accurate measurement of 3‐MCPD esters in edible oils. We developed a dispersed matrix solid‐phase supported liquid–liquid extraction (DMSP‐SLE) system to remove impurities. Both the transesterification and DMSP‐SLE conditions were optimised. A good linear relationship was obtained within the range of 0.05–10 mg kg −1 ( R 2 ≥ 0.999) in both blank solvent and an oil sample. The limit of detection was 20.36 μg kg −1 . The average recovery of the 3‐MCPD esters spiked at 0.5, 1.0 and 2.0 mg kg −1 into a blank oil matrix was in a range from 105.09 ± 2.77% to 120.16 ± 10.88%. The method we developed was further confirmed by performing detection on a Food Analysis Performance Assessment Scheme (FAPAS) sample. Abstract : Quantify 3‐MCPD esters through matrix solid‐phase dispersion supported liquid‐liquid extraction and GC‐MS analysis.