Process for extraction of an organic salt from plants, the...

C - Chemistry – Metallurgy – 07 – C

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C07C 51/42 (2006.01) A23K 1/16 (2006.01) A23K 3/00 (2006.01) A23L 3/3472 (2006.01) A23L 3/3508 (2006.01) A23L 3/3517 (2006.01) C07C 69/732 (2006.01) C09K 15/08 (2006.01) C11B 5/00 (2006.01)

Patent

CA 2395599

The invention relates to a completely water-soluble and long shelf-life antioxidant material comprising sodium rosmarinate, which has been extracted from tissue of plants of the Labiatae family without the necessity of adding extraneous sodium ions, and aqueous solutions comprising the antioxidant material, to sodium rosmarinate isolated from the extracted antioxidant material, to rosmarinic acid salts other than the sodium salt, or admixtures thereof with the sodium salt, obtained by cation-exchange with thus-isolated sodium rosmarinate, and to a process for preparing completely water-soluble antioxidant material comprising the sodium salt of rosmarinic acid, and its aqueous solutions.

L'invention concerne des sels de la fonction carboxylique de l'acide rosmarinique, choisis parmi un sel de sodium isolé de tissus de plantes de la famille des Labiatae, des sels d'acide rosmarinique autres que le sel de sodium, ou des mélanges d'autres sels avec le sel de sodiun, les autres sels ou mélanges étant ceux obtenus par échange cationique avec le sel de sodium isolé. L'invention porte également sur une matière antioxydante isolée par extraction du tissu de plantes de la famille des Labiatae, qui est intégralement hydrosoluble et présente une longue durée de conservation à la température ambiante; sur une solution aqueuse qui comprend ladite matière antioxydante; et sur un procédé pour la préparation de matière antioxydante intégralement hydrosoluble, comprenant le sel de sodium d'acide rosmarinique et ses solutions aqueuses.

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