Comprehensive Analysis of Lipid Composition in Crude Palm Oil Using Multiple Lipidomic Approaches

Wei Fun Cheong; Markus R. Wenk; Guanghou Shui

doi:10.1016/j.jgg.2014.04.002

Volume 41 Issue 5

May 2014

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Comprehensive Analysis of Lipid Composition in Crude Palm Oil Using Multiple Lipidomic Approaches

doi: 10.1016/j.jgg.2014.04.002

a
Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119275, Singapore
b
State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China

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Corresponding author: E-mail address: bchmrw@nus.edu.sg (Markus R. Wenk); E-mail address: ghshui@genetics.ac.cn (Guanghou Shui)
Received Date: 2013-11-14
Accepted Date: 2014-04-17
Rev Recd Date: 2014-04-17

Available Online: 2014-04-26

Publish Date: 2014-05-20

Abstract

Abstract

Palm oil is currently the leading edible oil consumed worldwide. Triacylglycerol (TAG) and diacylglycerol (DAG) are the dominant lipid classes in palm oil. Other lipid classes present in crude palm oil, such as phospholipids and galactolipids, are very low in abundance. These low-abundance lipids constitute key intermediates in lipid biosynthesis. In this study, we applied multiple lipidomic approaches, including high-sensitivity and high-specificity multiple reaction monitoring, to comprehensively quantify individual lipid species in crude palm oil. We also established a new liquid chromatography-coupled mass spectrometry method that allows direct quantification of low-abundance galactolipids in palm oil without the need for sample pretreatment. As crude palm oil contains large amounts of neutral lipids, our direct-detection method circumvents many of the challenges encountered with conventional lipid quantification methods. This approach allows direct measurement of lipids with no hassle during sample preparation and is more accurate and precise compared with other methods.
- Palm oil,
- Mass spectrometry,
- Lipidomics,
- Galactolipids,
- Phospholipids

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References(44)

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