Fungal bio-treatment of spruce wood with Trametes versicolor for pitch control: influence on extractive contents, pulping process parameters, paper quality and effluent toxicity

Bioresource Technology
T A van BeekR Sierra-Alvarez

Abstract

Lipophilic low molar-mass constituents in wood chips for the paper industry result in low quality pulp, pitch deposition, and effluent toxicity. New biotechnological solutions such as fungal pre-treatment of wood chips can reduce pitch problems. This laboratory-scale study focuses on the potential and limitations of a fungal bio-treatment of Norway spruce chips with the white-rot fungus Trametes versicolor. Different fungal treatment conditions were compared. A 4-week fungal treatment reduced the concentration of resin acids and triglycerides by 40% and 100%, respectively, but neither lowered the energy requirements of the TMP process nor significantly affected the morphological fiber characteristics and the physical pulp properties. The pre-treatment led to slightly poorer optical properties. The Trametes versicolor fungal treatment contributed to a less toxic effluent and improved the biodegradability. A treatment of 2-3 weeks appears optimal.

References

Jul 1, 1997·Canadian Journal of Microbiology·S N LissJ N Saddler
Aug 19, 2000·Journal of Biotechnology·J DoradoR Sierra-Alvarez
Nov 19, 2002·Applied Microbiology and Biotechnology·X Geng, K Li

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Citations

Feb 27, 2009·Applied Microbiology and Biotechnology·Ana GutiérrezAngel T Martínez
Jun 24, 2008·Journal of Hazardous Materials·Marcio Barreto-RodriguesTeresa C B Paiva
Nov 9, 2007·Bioresource Technology·Flaviano O SilvérioAugusto F Milanez
Jan 15, 2011·Bioresource Technology·Esmaeil Rasooly GarmaroodySeyyed Ahmad Mirshokraee

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