Identification of plasmalogen cardiolipins from Pectinatus by liquid chromatography-high resolution electrospray ionization tandem mass spectrometry
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
- MeSH
- Spectrometry, Mass, Electrospray Ionization methods MeSH
- Cardiolipins analysis chemistry MeSH
- Food Contamination MeSH
- Molecular Structure MeSH
- Pectinatus chemistry MeSH
- Beer microbiology MeSH
- Plasmalogens analysis chemistry MeSH
- Food Microbiology MeSH
- Tandem Mass Spectrometry methods MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Cardiolipins MeSH
- Plasmalogens MeSH
High resolution electrospray ionization tandem mass spectrometry (HR-ESI-MS/MS) was used to analyze cardiolipins (Ptd2Gro) including their plasmalogen forms from three species of the anaerobic beer-spoilage bacterial genus Pectinatus. Cardiolipins including their plasmalogens were analyzed by HR-ESI-MS/MS on Orbitrap and almost 100 cardiolipins (i.e. tetra-acyl--Ptd2Gro, plasmenyl-tri-acyl--PlsPtd2Gro, and di-plasmenyl-di-acyl--Pls2Ptd2Gro) of three classes were identified. The structures of the molecular species that consist of various regioisomers and structurally similar compounds were revealed in detail. The high resolution mass spectrometry allowed the unambiguous structural assignment of Ptd2Gro, PlsPtd2Gro, and Pls2Ptd2Gro in the three species of Pectinatus, which contain predominantly odd numbered fatty acids.
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