López Hernández, María Julia CeliaRodríguez Bernaldo de Quirós, Ana Isabel2017-10-202017-10-202016-10-24López-Hernández, J.; Rodríguez-Bernaldo de Quirós, A. Trans-Stilbenes in Commercial Grape Juices: Quantification Using HPLC Approaches. Int. J. Mol. Sci. 2016, 17, 1769http://hdl.handle.net/10347/15906Trans-stilbenes belong to the group of polyphenolic phytoalexins, and occur in many plant foods. These compounds have received great attention by researchers due to their well-known beneficial health effects. In the present study a chromatographic method that comprises the use of variable wavelength (VWD) and fluorescence (FLD) detectors in series for the analysis of trans-stilbenes is presented. The relation of peak-area obtained with both detectors is proposed as an alternative and complementary approach for the rapid identification of these phenolic compounds. The proposed method was applied to determine trans-stilbenes in commercial fruit juices. Trans-piceid was the most common trans-stilbene found in the samples analyzed. The method was validated in terms of linearity, sensitivity and repeatability. Appropriate sensitivity and good linearity (r2 > 0.9991) were achieved.eng© 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/)http://creativecommons.org/licenses/by-nc-nd/3.0/es/http://creativecommons.org/licenses/by/4.0/Trans-stilbenesCommercial fruit juicesHigh-performance liquid chromatographyVariable wavelength detectorFluorescence detectorMaterias::Investigación::23 Química::2301 química analíticajournal article10.3390/ijms171017691422-0067open access