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Biological bleaching of kraft pulps by white-rot fungi and their enzymes

1994; Oxford University Press; Volume: 13; Issue: 2-3 Linguagem: Inglês

10.1111/j.1574-6976.1994.tb00056.x

1574-6976

Ian D. Reid, Michael G. Paice,

Lignin and Wood Chemistry

The use of white-rot fungi, especially Trametes versicolor and isolate IZU-154, to delignify and brighten kraft pulps is reviewed. The fungal treatments are effective but slow; the responsible enzymes are being studied with a view to accelerating the process. Manganese peroxidase, or laccase with a co-substrate, can demethylate and partially solubilize the lignin in pulps, mimicking the early steps of the fungal delignification.