Modification of high-lignin kraft pulps with laccase. Part 2. Xylanase-enhanced strength benefits.
The effects of xylanase pretreatment of high lignin content softwood (SW) kraft pulp on subsequent pulp treatment with laccase in combination with gallic acid were investigated. Although xylanase pretreatment was ineffective in enhancing the laccase-facilitated biografting of gallic acid to kraft fibers, it was beneficial for subsequent treatment with laccase exclusively. Treating pulp fibers with xylanase followed by laccase provided a collective 25% and 46% increase in dry and wet tensile strength properties, respectively.
Chandra
Richard P
RP
School of Chemistry and Biochemistry, Institute of Paper Science and Technology, Georgia Institute of Technology, 500 10th St. NW, Atlanta, GA 30332, USA.
Ragauskas
Arthur J
AJ
D043364:Endo-1,4-beta Xylanases / Q000737:chemistry / Q000378:metabolism*; D005707:Gallic Acid / Q000737:chemistry; D042845:Laccase / Q000737:chemistry / Q000378:metabolism*; D008031:Lignin / Q000737:chemistry / Q000378:metabolism*; D014934:Wood
D005707:Gallic Acid; C076151:Kraft lignin; D008031:Lignin; D042845:Laccase; D043364:Endo-1,4-beta Xylanases