Fecha de publicación: 24/04/1996 Fuente: WIPO "propolis" The invention concerns the use of compounds with the general formula I where R is the same or different and represents H, OH or for preparing a composition for use as an antibacterial, antiviral or immunostimulating agent or wound healing factor. A process for preparing a mixture containing these substances is disclosed, whereby a propolis containing product such as an organic solvent, preferably an alcoholic solution con- taining propolis, is added to water or a water solution containing 0,1-17 weight % of NaCl with a temperature of 30-95C, and the mixture is kept at 30-95C for 10-100 hours, whereafter the solution is freed from the bottom sediment.