C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 39/21 (2006.01) A23L 1/30 (2006.01) A61K 8/97 (2006.01) A61Q 19/00 (2006.01) B01D 11/02 (2006.01) C07C 37/82 (2006.01)
Patent
CA 2755418
Provided are a piceatannol-containing composition which is a composition originating in a natural material and containing piceatannol at a high concentration, and a method of producing the piceatannol-containing composition. A piceatannol-containing composition which contains 0.0001 to 99.9% by mass of piceatannol is obtained by extracting passion fruit seeds. The extraction of piceatannol is carried out by grinding the passion fruit seeds, adding at least one solvent selected from an aqueous alcohol-based solvent and an aqueous ketone-based solvent and agitating to thereby extract piceatannol into the above-described solvent. In this case, it is preferable to conduct stepwise extraction by using both of the aqueous alcohol-based solvent and the aqueous ketone-based solvent.
Cette invention concerne une composition contenant du piceatannol qui est une composition provenant d'une substance naturelle et contenant du piceatannol à une concentration élevée, et un procédé de production de ladite composition contenant du piceatannol. Une composition contenant du piceatannol à raison de 0,0001 à 99,9 % en poids de la composition est obtenue par extraction de graines de fruits de la passion. L'extraction du piceatannol est mise en uvre par broyage des graines de fruits de la passion, ajout d'au moins un solvant choisi parmi un solvant aqueux à base d'alcool et un solvant aqueux à base de cétone et agitation pour extraire ainsi le piceatannol dans le solvant décrit ci-dessus. Dans ce cas, il est préférable de procéder à une extraction pas à pas en utilisant à la fois le solvant aqueux à base d'alcool et le solvant aqueux à base de cétone.
Kamei Masanori
Matsui Yuko
Sugiyama Kenkichi
Morinaga & Co. Ltd.
Perley-Robertson Hill & Mcdougall Llp
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