Lebot Vincent, Do T.K.T., Legendre Laurent. 2014. Detection of flavokavins (A, B, C) in cultivars of kava (Piper methysticum) using high performance thin layer chromatography (HPTLC). Food Chemistry, 151 : 554-560.
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Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : CHEMISTRY, APPLIED / Quartile : Q1, Sujet : NUTRITION & DIETETICS
Résumé : Kava (Piper methysticum) is used to prepare the traditional beverage of the Pacific islands. In Europe, kava has been suspected to cause hepatoxicity with flavokavin B (FKB) considered as a possible factor. The present study describes an HPTLC protocol for rapid screening of samples. The objectives are: to detect the presence of flavokavins in extracts and to compare the FKB levels in different cultivars. Overall, 172 samples originating from four cultivars groups (noble, medicinal, two-days and wichmannii), were analysed. Results indicate that the ratio FKB/kavalactones is much higher in two-days (0.39) and wichmannii (0.32) compared to nobles (0.09) and medicinal cultivars (0.10). For each group, the ratios flavokavins/kavalactones do not change significantly between roots, stumps or basal stems and among clones, indicating that they are genetically controlled. This protocol has good accuracy and is cost efficient for routine analysis. We discuss how it could be used for quality control.
Mots-clés Agrovoc : Piper methysticum, flavonoïde, identification, composition des aliments, composition chimique, chromatographie en couche mince, qualité, lactone, chalcone, hépatotoxine, toxicité, contrôle de qualité, collection de matériel génétique
Mots-clés géographiques Agrovoc : Vanuatu
Classification Agris : Q04 - Composition des produits alimentaires
Q03 - Contamination et toxicologie alimentaires
U30 - Méthodes de recherche
F60 - Physiologie et biochimie végétale
Champ stratégique Cirad : Axe 3 (2014-2018) - Alimentation durable
Auteurs et affiliations
- Lebot Vincent, CIRAD-BIOS-UMR AGAP (VUT)
- Do T.K.T., Université de Nice (FRA)
- Legendre Laurent, Université Claude Bernard (FRA)
Source : Cirad - Agritrop (https://agritrop.cirad.fr/572108/)
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