ArticleRapid communications in mass spectrometry : RCM2026
Characterization of Grape Cane Stilbenoids and Their Photo-Degradation Products by HPLC-DAD Coupled With Trapped Ion Mobility Spectrometry and High-Resolution Tandem Mass Spectrometry.
Article in Rapid communications in mass spectrometry : RCM, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
rationaleBioactive (E)-stilbenoids in vine extracts are prone to light-induced transformation into the respective (Z)-isomers and further degradation products, often resulting in a loss of bioactivity. We sought to study stilbenoid degradation beyond that of the well-researched resveratrol due to the high diversity of stilbenoids in nature.
methodsNine authentic, individual stilbenoids and a stilbenoid-rich grape cane extract were irradiated with artificial sunlight and their photodegradation products analyzed by liquid chromatography coupled with diode array detection, electrospray ionization, trapped ion mobility spectrometry, and quadrupole time-of-flight high-resolution tandem mass spectrometry (HPLC-DAD-ESI-TIMS-QTOF-HR-MS/MS).
resultsOverall, a total of 45 different transformation products were identified in light-exposed standard solutions and the grape cane extract. For the first time, collision cross section values of grape cane stilbenoids (154.8-286.4 Å
conclusionThese results highlight the potential of combining liquid chromatography, TIMS, and HR-MS/MS for these types of compounds to broaden the knowledge on photodegradation pathways of grapevine stilbenoids beyond resveratrol.
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