HPLC evolution of beech wood extractives was investigated with or without exposure to Coriolus versicolor during one month. The nature and the quantity of extracts depends on the extraction conditions, but were also strongly influenced by the wood drying temperature and time leading to an important modification for higher drying temperature. After two weeks of exposure to Coriolus versicolor, results showed that catechin initially present in beech wood, was totally degraded, while other new products appeared. Impregnation of propiconazole before exposure to Coriolus versicolor results in total inhibition of catechin degradation allowing its use as tracer of wood degradation.

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