Method of obtaining cellulase deficient strains of white-rot...

Details Method of obtaining cellulase deficient strains of white-rot... Method of obtaining cellulase deficient strains of white-rot...

D - Textiles, Paper

21

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195/50, 195/60

D21C 3/00 (2006.01) A23K 1/165 (2006.01) C12N 1/14 (2006.01) C12N 1/22 (2006.01) C12N 15/00 (2006.01) D21C 5/00 (2006.01)

Patent

CA 1267859

ABSTRACT A method is described of obtaining cellulase deficient strains which have great ability to degrade lignin at the same time. The method comprises crossing a homokaryotic cellulase deficient mutant of a white-rot fungus having a full sexual cycle with a homokaryotic strain of the same fungus, this strain having great lignin degrading ability. Strains are subsequently selected that have great ligning degrading ability in combination with cellulase deficiency. A suitable white-rot fungis is Phanerochaete chrysosporium. The crossings are suitably performed for a plurality of generations. The strain of white-rot fungus obtained is used for delignifying lignocellulosic material

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