Extraction of phenolic antioxidants

C - Chemistry – Metallurgy – 07 – B

Patent

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C07B 63/00 (2006.01) C07C 27/34 (2006.01) C07C 65/03 (2006.01) C07C 67/56 (2006.01) C07C 69/732 (2006.01) C07C 69/734 (2006.01) C07D 311/40 (2006.01) C07D 311/74 (2006.01)

Patent

CA 2466514

Procedures for deriving antioxidant phenolics from fruits and/or vegetables reliant upon milling to an aqueous slurry, subjection in the resultant aqueous phase to temperatures in the range of from 125~C to 220~C so as to derive in solution phenolics from the fruit and/or vegetable material, and thereafter some procedure of harvesting of the antioxidant phenolic composition. Such products in a powder, liquid concentrate or solution form are capable of being ingested for the purposes of ameloriating the health damaging effects of free radicals in the body, or being incorporated into food stuffs or cosmetics to act as antioxidants to prevent oxidative deteriation in the products such as the formation of off-flavours.

L'invention concerne des procédures relatives à l'extraction de composés phénoliques antioxydants à partir de fruits et/ou de légumes: une suspension aqueuse épaisse préalablement soumise à un brassage est exposée, dans la phase aqueuse résultante, à des températures comprises entre 125· C et 220· C, ce qui permet d'extraire en solution la fraction phénolique à partir des fruits et/ou des légumes utilisés; ensuite, on applique une technique de collecte des composés phénoliques antioxydants. On peut ingérer les composés considérés, en poudre, en concentré liquide ou en solution, afin d'atténuer les effets dommageables pour la santé que les radicaux libres produisent dans le corps. On peut aussi les incorporer à des produits alimentaires ou cosmétiques, comme antioxydants agissant contre la détérioration oxydative qui se manifeste par exemple sous la forme de défauts d'arôme.

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