Abstract
A rapid and selective GC-MS method was optimised for the simultaneous analysis of fatty acids, phosphoethanolamine, phosphoglycerol and phosphoserine, which comprise the polar headgroups of phospholipids. Enzymatic hydrolysis was used for sample preparation to selectively release fatty acids and prevent cleavage of the phosphoester bonds of the polar headgroups. A two-step consecutive derivatisation of the fatty acids and polar headgroups was applied to enable the simultaneous analysis of the selected analytes. The method was tested on samples of cell membrane phospholipids of Bacillus subtilis, a microbe with a broad spectrum of fatty acids. This approach can accelerate and simplify biotechnological research and quality control. The experimental conditions were optimised using a chemometric approach denoted as experimental design.
Acknowledgements
This work receive financial support from grant nos. SVV260317 and 13-18051P from the Czech Science Foundation.
Supplementary data
Supplementary data associated with this article can be found in the online version of this paper (DOI: 10.1515/chempap-2016-0073).
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© 2016 Institute of Chemistry, Slovak Academy of Sciences
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