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Article

Liquid Chromatographic Fingerprints for the Characterization of Flavanol-Rich Nutraceuticals Based on 4-Dimethylaminocinnamaldehyde Precolumn Derivatization

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Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès, 1-11, E-08028 Barcelona, Spain
2
Research Institute in Food Nutrition and Food Safety, University of Barcelona, Recinte Torribera, Av. Prat de la Riba 171, Edifici de Recerca (Gaudí), E-08921 Santa Coloma de Gramenet, Spain
3
Serra Húnter Fellow, Generalitat de Catalunya, Barcelona, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Helen D. Skaltsa
Received: 30 March 2021 / Revised: 1 May 2021 / Accepted: 4 May 2021 / Published: 6 May 2021
Flavanols consist of a great family of bioactive molecules displaying a wide range of health-promoting attributes for humans, including antioxidant, antimicrobial or anti-inflammatory effects. As a result, botanical species rich in this type of compound are often used to develop nutraceutical products or dietary supplements with recognized healthy attributes. This paper aims at characterizing nutraceutical products using liquid chromatographic fingerprints related to flavanol composition. Catechins and their oligomers were exploited to characterize and authenticate various commercial products prepared with extracts of red berries and medicinal plants. These compounds resulted in interesting descriptors of some fruits and vegetables, thus providing an additional perspective for the study of nutraceuticals. For such a purpose, a new method based on liquid chromatography with UV/Vis detection (HPLC–UV/Vis) with precolumn derivatization with 4-dimethylaminocinnamaldehyde was developed. Results indicated that the separation of flavanols was very complex due to the degradation of procyanidin derivatives. The resulting data sets were analyzed using chemometric methods such as principal component analysis and partial least square–discriminant analysis. Despite the complexity of chromatographic fingerprints, nutraceutical samples could be discriminated according to their main ingredients. In general, catechin and epicatechin were the most abundant compounds in the different samples, and procyanidin A2 was highly specific to cranberry. View Full-Text
Keywords: red berries; medicinal plants; flavonoids; nutraceuticals; 4-dimethylaminocinnamaldehyde; HPLC–UV; principal component analysis; partial least square–discriminant analysis red berries; medicinal plants; flavonoids; nutraceuticals; 4-dimethylaminocinnamaldehyde; HPLC–UV; principal component analysis; partial least square–discriminant analysis
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MDPI and ACS Style

Vidal-Casanella, O.; Nuñez, O.; Saurina, J. Liquid Chromatographic Fingerprints for the Characterization of Flavanol-Rich Nutraceuticals Based on 4-Dimethylaminocinnamaldehyde Precolumn Derivatization. Sci. Pharm. 2021, 89, 18. https://0-doi-org.brum.beds.ac.uk/10.3390/scipharm89020018

AMA Style

Vidal-Casanella O, Nuñez O, Saurina J. Liquid Chromatographic Fingerprints for the Characterization of Flavanol-Rich Nutraceuticals Based on 4-Dimethylaminocinnamaldehyde Precolumn Derivatization. Scientia Pharmaceutica. 2021; 89(2):18. https://0-doi-org.brum.beds.ac.uk/10.3390/scipharm89020018

Chicago/Turabian Style

Vidal-Casanella, Oscar; Nuñez, Oscar; Saurina, Javier. 2021. "Liquid Chromatographic Fingerprints for the Characterization of Flavanol-Rich Nutraceuticals Based on 4-Dimethylaminocinnamaldehyde Precolumn Derivatization" Sci. Pharm. 89, no. 2: 18. https://0-doi-org.brum.beds.ac.uk/10.3390/scipharm89020018

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