Water-soluble products from the degradation of aspen lignin by Phanerochaete chrysosporium

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Abstract
When P. chrysosporium degrades [14C]lignin-labeled aspen wood in static liquid culture, it releases almost as much 14C in water-soluble form as in 14CO2. Water-soluble UV-absorbing materials also accumulate in cultures that are degrading lignin. The water-soluble radioactive materials appear to be intermediates in lignin degradation, because they can be further metabolized to CO2 and because the soluble materials labeled during [14C]lignin degradation are distinct from the materials labeled during [14C]glucose metabolism. These lignin degradation products can be fractionated by gel chromatography and are mostly acidic.

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