Time course of fungal removal of lipophilic extractives from Eucalyptus globulus wood

Fungi and Their Enzymes for Pitch Control in the Pulp and Paper Industry

“…In contrast, several ascomycetous fungi including Cartapip decreased the sterol ester content but did not convert free sterols. The time-course of fungal removal of these compounds was followed to optimize the treatment time for selected fungal species, namely Phlebia radiata, Ceriporiopsis subvermispora, Bjerkandera adusta, and Pleurotus pulmonarius (Martínez-Íñigo et al 2000). Kraft pulping and TCF bleaching of eucalypt wood chips treated with these four basidiomycetes and subsequent papermaking from the pulps obtained confirmed their potential for pitch biocontrol .…”

“…The above results show that resin deposition control by enzymatic treatments should be evaluated carefully before any large-scale application, since degradation of certain compounds may result in more unstable wood resin dispersions (Qin et al 2004). Little is known on the enzymes involved in enzymatic degradation of sterols and resin acids despite reports of microbial degradation of these compounds, as mentioned above (Gutiérrez et al 1999b(Gutiérrez et al , 2001aHata et al 1998;Liss et al 1997;Marsheck et al 1972;Martínez-Íñigo et al 2000). Therefore, new enzymes acting on a broader range of substrates are being investigated, including oxidoreductases, as described below.…”

Anaerobic digestion of pulp and paper mill wastes – An overview of the developments and improvement opportunities

“…1. Predominating raw materials for P&P production in some main [20] P&P producers [21][22][23][24][25][26][27][28][29][30].…”

Wood production, wood technology, and biotechnological impacts

“…SSF is, however, not restricted to applications in productions. Instead of treating the raw materials with xylanase solutions for biopulping and biobleaching (Daneault et al 1994, fungal SSF can serve as an integral part in the process from compact lignocellulosic material to pulp and paper (Martínez-Íñigo et al 2000, Gutíerrez et al 2001, Helmy & ElMeligi 2002, Kang et al 2003, Szendefy et al 2003, van Beek et al 2007. In order to replace petrochemicals and help to solve the problems of global warming, SSF with fungi on lignocellulosic substrates has also found high interest in biorefinery as an environmentally-friendly production system for fuels, energy, and chemicals from biomass , Watanabe 2007; see Chapters 6 and 22 of this book).…”