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OENOTANNIN VELVET 500g

Price: $197.05

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In Stock 2

Paquet 500g (P)

(P)=powder | (G)=granules | (D)=disc | (S)=Solution

Oenotannin Velvet

Grape seed tannin with a fraction of medium molecular weight tannins

Grape seed tannins
Red, white and rosé wines Ageing

 
Oenological tannins (condensed tannins or proanthocyanidins) extracted from grape seeds have the same structure than wine tannins and play a significant role in wine stabilization.
Several procedures allow to obtain more or less pure commercial preparations with varying polymerization degrees. Oenofrance offers three kinds of grape seed tannins obtained with different well-mastered extraction procedures. In order to ensure constant quality, the tannins are extracted from fresh and rapidly processed white grape pomace.
Oenotannin Velvet provides proanthocyanidins that are less polymerized than those of Oenotannin Initial (see overleaf).



 
 

Characteristics :

 
• Appearance : crystalline powder
• Colour : brown
• Total phenol content : 90-95% (expressed as catechins)
• Proanthocyanidin tannin content >90% (expressed as grape seed oligomers)
• Solubility : completely soluble in water and wine
• Average polymerization degree (p (1)) between 3 and 6
• Active tannic fraction (ATF(2)) : 60-65 %
• Antiradical activity(3) : 50-55 %

Properties :

 
• Oenotannin Velvet, as a fining agent, contributes to precipitating proteins in white and rosé wines.
• It compensates for deficiencies with structure, volume and suppleness
• As reducing compound, it is a wine maturation support
• It stabilizes the coloring compounds of the wine because of its reactivity with wine polyphenols.
• It protects wines from oxidation
 


 

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Photos Julien Perron Gagné