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Red Vine Leaf

Red Vine Leaf

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Peer-reviewed science on Red Vine Leaf

Flavonoids and anthocyanins content1

In a comparative study of 135 samples of red vine leaves of different origins conducted to determine flavonoid, anthocyanin and polyphenol contents, total flavonoid content of red vine leaf is found to be 0.6-3.5% and total anthocyanin content 0.2-1.45%.
The analysis of flavonoids extracted from a broad variety of red vine leaves showed quercetin 3-O-β-D-glucuronide to be the predominant compound, followed by isoquercitrine and kaempferol.

red vine leaf-01

Figure 1: Overview of flavonoids and their order of magnitude in red vine leaves with high performance liquid chromatography. 
Peaks of quercetin, isoquercitrine and kaempferol are shown.

red vine leaf-02

Figure 2: Anthocyanin content of red vine leaves. Correlation between the photometric method according to French Pharmacopoeia and the high performance liquid chromatography method.

BIBLIOGRAPHY
1Schenider, E.; von der Heydt, H.; Esperester, A. Planta Medica, 74, 565-572 (2008).
2Pharmacopée française (PF10), 10ème édition. Paris: Agence Française de sécurité sanitaire des produits de santé. Monograph Vigne Rouge, (Jan. 1996).
3Lee, D. University of Chicago Press, Chicago and London, pgg.270-295 (2007).

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