METHOD FOR MINIMIZING THE CYTOTOXICITY OF THE EFFECTIVE AGENT INHIBITING THE GROWTH OF MICRO-ORGANISMS AND FOR MAXIMIZING THE EFFECT

摘要

The invention relates to a mixture to be included in a composition or its semi-finished product, which composition or its semi-finished product contains at least one anti-micro-organistic agent; a possible solvent system with either hydrophobic or hydrophilic nature, selected according to the target of usage; as well as possible surface active agent. The mixture is obtained by pulverizing wood or plant material and/or by extracting the possibly pulverized wood or plant material, so that said mixture contains at least two different polyphenolic compounds selected from the following group: lignans, stilbenes, juvabiones and flavonoids; said mixture further containing oligomers of said polyphenolic compounds, so that the mixture also must have the following properties: the mixture has an anti-micro-organistic effect in the composition or in the semi-finished product; the cytotoxicity of the polyphenols contained in the mixture is at least 10 times lower with respect to BHT; the mixture does not irritate the skin in a so-called single patch test with contents of 0.1 wt%.