High-Throughput Assay of Oleopentanedialdheydes in Extra Virgin Olive Oil by the UHPLC鈭扙SI-MS/MS and Isotope Dilution Methods

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• 作者：Leonardo Di Donna ; Hicham Benabdelkamel ; Fabio Mazzotti ; Anna Napoli ; Monica Nardi ; Giovanni Sindona
• 刊名：Analytical Chemistry
• 出版年：2011
• 出版时间：March 15, 2011
• 年：2011
• 卷：83
• 期：6
• 页码：1990-1995
• 全文大小：813K
• 年卷期：v.83,no.6(March 15, 2011)
• ISSN：1520-6882

文摘

The quality of extra virgin olive oil is associated with the presence of microcomponents whose healing effects have been proved in some special cases. The enzymatic hydrolysis of oleuropein and ligstroside, and of their demethylated analogues, affords four different pentanedialdehydes, and for one of which, 2-(4-hydroxyphenyl)ethyl (3S,4E)-4-formyl-3-(2-oxoethyl)hex-4-enoate, also known as oleocanthal, an anti-inflammatory effect was quite recently carefully assessed. Extra virgin olive oil is now worldwide considered as a functional food whose daily intake, as for the Mediterranean diet, helps consumers in keeping a constant level of nonsteroidal anti-inflammatory drug (NSAID) in the blood. The presence of these active principles provides, therefore, olive oil with an important added value. In the framework of the actions of the recently funded Agrifood Regional Center, which should coordinate the scientific research and production worlds, an absolute analytical method was developed for the mass spectrometric detection of the two most abundant NSAIDs, Tyr-OLPD and HTyr-OLPD (oleopentanedialdehydes (OLPDs) conjugated to p-hydroxyphenylethanol and 3,4-dihydroxyphenylethanol, respectively), by UHPLC-ESI-MS/MS.