A crude enzyme preparation has been isolated from the white-rot fungus Trametes cingulata that depolymerizes high molecular weight softwood kraft lignin components completely. A single treatment with partially purified extracellular T. cingulata culture solution in the presence of approximately 104 M FAD, when followed by a brief extraction with dilute aqueous NaOH at ambient temperatures, engenders a 50% reduction in the kappa number of Jack pine kraft pulp brownstock. Thus the lignin depolymerase from T. cingulata appears to be well suited to delignifying unbleached softwood kraft pulp directly.
|Original language||English (US)|
|State||Published - Jan 1 1997|
|Event||Proceedings of the 1997 9th International Symposium on Wood and Piping Chemistry, ISWPC. Part 1 (of 2) - Montreal, Can|
Duration: Jun 9 1997 → Jun 12 1997
|Other||Proceedings of the 1997 9th International Symposium on Wood and Piping Chemistry, ISWPC. Part 1 (of 2)|
|Period||6/9/97 → 6/12/97|