Abstract
The bioconversion of Phanerochaete chrysosporium cultures in aqueous poly(vinyl alcohol)—PVAL—solutions was studied. A 50% weight loss was observed within 20 days, caused by a ligninperoxidase—LiP—enzyme which is produced during the secondary metabolism of Phanerochaete chrysosporium. The changes of the chemical structure of PVAL were studied by UV- and IR-spectroscopy. The presence of vanillin—the major metabolic reaction product, benzaldehyde, and veratry-lalcohol was determined chromatographically (HPLC) in the extra cellular medium after different reaction times. A possible mechanism of the biological degradation is outlined.
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