| abstract |
The present invention relates to antioxidants, mixtures, preparations, colorants, vesicles, carotenoid formulations, dermocosmetics, pharmaceuticals, foods and animal feeds, and other solids or liquids or mixtures thereof which comprise 3,3'-dihydroxyisorenieratene, isorenieratene-3,3'-diquinone,2,2',4,4'-tetra-tert-butylisorenieratene-3,3'-diquinone, 3,3'-dihydroxy-2,2',4,4'-tetra-tert-butylisorenieratene or related isorenieratene compounds or have been produced using these compounds or with a method which comprises the use of these compounds. |