MALDI-SpiralTOF technology for assessment of triacylglycerols in Croatian olive oils

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• 作者：Željka Peršurić ; Junichi Osuga ; Tihana Galinac Grbac ; Jasna Peter-Katalinić and Sandra Kraljević Pavelić
• 刊名：European Journal of Lipid Science and Technology
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：119
• 期：2
• 全文大小：1096K
• ISSN：1438-9312

文摘

Traceability and authenticity of olive oils in Croatia were probed by a versatile analytical approach using spiral MALDI-TOF MS system for the triacylglycerol (TAG) analysis. Molecular ion patterns were shown to represent specific data for statistical analysis, in which differences of cultivar regions of Croatian coast were recognized. This pilot project allows indications to be followed in high throughput procedures with high number of samples to get statistically relevant data for discrimination of olive oils from different geographic sites. Additionally, the fragmentation in the TOF/TOF MS provided distinct highly valuable data for assignment of acyl residues. In this way molecular species with different fatty acid substituents can be clearly assigned and possible isomeric mixtures identified.