| abstract |
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. |