Differentiation of partial acylglycerols derived from different animal fats by EA-IRMS and GCMS techniques

Authors

  • A. N. Nina Naquiah Halal Products Research Institute, Universiti Putra Malaysia
  • J. M.N. Marikkar Halal Products Research Institute, Universiti Putra Malaysia - International Institute for Halal Research & Training, International Islamic University Malaysia
  • M. Shuhaimi Halal Products Research Institute, Universiti Putra Malaysia

DOI:

https://doi.org/10.3989/gya.0757152

Keywords:

Animal fat derivatives, DAG, EA-IRMS, GC-MS, MAG, Partial acylglycerols

Abstract


A study was carried out to compare partial acylglycerols of lard with those of chicken fat, beef fat and mutton fat using Gas Chromatography Mass Spectrometry (GC-MS) and Elemental Analysis–Isotope Ratio Mass Spectrometry (EA-IRMS). Mono- (MAG) and di-(DAG) acylglycerols of animal fats were prepared according to a chemical glycerolysis method and isolated using column chromatography. The fatty acid composition and δ13C carbon isotope ratio of MAG and DAG derived from individual animal fat were determined separately to establish their identity characteristics. The results showed that the δ13C values of MAG and DAG of lard were significantly different from those of MAG and DAG derived from chicken fat, beef fat and mutton fat. According to the loading plots based on a principle component analysis (PCA), fatty acids namely stearic, oleic and linoleic were the most discriminating parameters to distinctly identify MAG and DAG derived from different animal fats. This demonstrated that the EA-IRMS and the PCA of fatty acid data have considerable potential for discriminating MAG and DAG derived from lard from other animal fats for Halal authentication purposes.

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Published

2016-06-30

How to Cite

1.
Nina Naquiah AN, Marikkar JM, Shuhaimi M. Differentiation of partial acylglycerols derived from different animal fats by EA-IRMS and GCMS techniques. Grasas aceites [Internet]. 2016Jun.30 [cited 2024Mar.29];67(2):e136. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1602

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Research