PROCESS FOR OBTAINING A TANNIN EXTRACT ISOLATED FROM GRAPES, TANNIN EXTRACT OBTAINED AND USES THEREOF

PROCESS FOR OBTAINING A TANNIN EXTRACT ISOLATED FROM GRAPES, TANNIN EXTRACT OBTAINED AND USES THEREOF

A process for obtaining a tannin extract isolated from whole grape seeds is provided. The process is performed in as a one-pot reaction and in a single extraction step, wherein the seeds are processed without grinding or milling. Also provided is a tannin extract with improved antioxidant and light...

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Hauptverfasser: CONCEPCIÓ, Casas Solé, ANNA, Bacardit Dalmases, SÍLVIA, Sorolla Casellas, LUIS, Ollé Otero
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Zusammenfassung:A process for obtaining a tannin extract isolated from whole grape seeds is provided. The process is performed in as a one-pot reaction and in a single extraction step, wherein the seeds are processed without grinding or milling. Also provided is a tannin extract with improved antioxidant and light fastness properties obtained from whole grape seeds that includes a mixture of tannins and non-tannins, in which the content of tannins or polyphenols is higher than 50%. Ise, the tannin extract isolated from whole grape seeds can include a coloring agent.