Short Communication

Improvement of accuracy in quantification of 3-monochloropropane-1,2-diol esters by Deutsche Gesellschaft für Fettwissenschaft standard methods C-III 18

  1. Naoki Kaze1,
  2. Hirofumi Sato2,
  3. Hiroshi Yamamoto1,
  4. Yomi Watanabe2,*

Article first published online: 7 JUL 2011

DOI: 10.1002/ejlt.201000564

Issue

European Journal of Lipid Science and Technology

European Journal of Lipid Science and Technology

Volume 113, Issue 9, pages 1168–1171, September 2011

Additional Information

How to Cite

Kaze, N., Sato, H., Yamamoto, H. and Watanabe, Y. (2011), Improvement of accuracy in quantification of 3-monochloropropane-1,2-diol esters by Deutsche Gesellschaft für Fettwissenschaft standard methods C-III 18. Eur. J. Lipid Sci. Technol., 113: 1168–1171. doi: 10.1002/ejlt.201000564

Author Information

  1. 1

    Ueda Oils and Fats MFG Co. Ltd., 17 Uozakihamamachi, Higashinada-ku, Kobe, Japan

  2. 2

    Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka, Japan

*Osaka Municipal Technical Research Institute, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan Fax: +81-6-6963-8079.

Publication History

  1. Issue published online: 12 SEP 2011
  2. Article first published online: 7 JUL 2011
  3. Accepted manuscript online: 7 JUN 2011 04:30AM EST
  4. Manuscript Accepted: 10 MAY 2011
  5. Manuscript Revised: 13 APR 2011
  6. Manuscript Received: 27 DEC 2010

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Keywords:

  • 3-Monochloropropane-1,2-diol (3-MCPD);
  • Chloroform;
  • DGF standard methods;
  • Ethyl acetate;
  • Extraction;
  • Solvent

Abstract

By Deutsche Gesellschaft für Fettwissenschaft (DGF) standard methods C-III 18 for the determination of 3-monochloropropane-1,2-diol (3-MCPD), the minimum limit of detection was lower in the case of actual oil samples compared to the calibration samples. The problem was found to be lied in the low recovery of 3-MCPD derivatives from the aqueous phase to the organic phase at the extraction step of the standard procedure. The substitution of the conventional solvent, n-hexane, with n-butanol, chloroform, and ethyl acetate increased the recovery to the relative extent of 5.6, 4.7, and 3.9, respectively. The modification contributed to improve the accuracy of the method, especially at lower concentration (<1 ppm) of 3-MCPD.

Practical applications: This paper provides the modification of DGF standard methods C-III 18 in order to improve the accuracy to quantify 3-MCPD at lower concentration. It might be important for estimation and control of our daily intake of 3-MCPD, and for the product control in the fat and oil processing.

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