Nutrimuscle Forum : Mobile & Tablette

Synergie des polyphénols du thé vert

Actualités sport, fitness & musculation, vidéos des pros, études scientifiques. Discutez avec la communauté Nutrimuscle et partagez votre expérience...

Modérateurs: Nutrimuscle-Conseils, Nutrimuscle-Diététique

Synergie des polyphénols du thé vert

Messagepar Nutrimuscle-Conseils » 19 Jan 2016 18:16

Synergistic, antagonistic and additive interactions of green tea polyphenols
Marta Colon European Food Research and Technology February 2016, Volume 242, Issue 2, pp 211-220

Green tea is a natural source of polyphenols where their catechins and flavonols are the major components. Their antioxidant activities are the most important biological effect and often the object of study. DPPH (2,2-diphenyl-1-picryl-hydrazyl) radical assay has been carried out to measure the individual scavenging activities expressed as percentage of DPPH inhibition for each tea polyphenol, and (−)-gallocatechin gallate (GCG) (74.04 ± 0.38 %) and (−)-epigallocatechin gallate (EGCG) (69.51 ± 0.27 %) were the most active compounds. Synergistic, antagonistic and additive interactions among catechin derivatives as well as combined with green tea extract have been analyzed, where GCG and EGCG provided most of the synergistic effects. Flavonols such as quercetin (54.61 ± 0.21 %) and kaempferol (24.06 ± 0.02 %) also showed free radicals’ scavenging activity. Interactions between flavonols and individual catechins as well as their mixtures in the tea extract have been investigated.

The results suggested that the presence of tea flavonols in tea extract provided additive interactions and the tea catechins were responsible for synergism in green tea. This work can be the starting point of the research about supplemented green tea from its own catechins to increase the total antioxidant capacity of the green tea.
Avatar de l’utilisateur
Nutrimuscle-Conseils
Forum Admin
 
Messages: 38837
Inscription: 11 Sep 2008 19:11

Retourner vers Actualités, vidéos, études scientifiques

Qui est en ligne

Utilisateurs parcourant ce forum: Aucun utilisateur enregistré et 3 invités