Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing compound containing saccharide radical
Reexamination Certificate
2008-04-08
2008-04-08
Lilling, Herbert J. (Department: 1657)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing compound containing saccharide radical
C435S200000, C435S209000, C435S277000
Reexamination Certificate
active
07354743
ABSTRACT:
The present invention relates to methods for degrading a lignocellulosic material, comprising: treating the lignocellulosic material with an effective amount of one or more cellulolytic enzymes in the presence of at least one surfactant selected from the group consisting of a secondary alcohol ethoxylate, fatty alcohol ethoxylate, nonylphenol ethoxylate, tridecyl ethoxylate, and polyoxyethylene ether, wherein the presence of the surfactant increases the degradation of lignocellulosic material compared to the absence of the surfactant. The present invention also relates to methods for producing an organic substance, comprising: (a) saccharifying a lignocellulosic material with an effective amount of one or more cellulolytic enzymes in the presence of at least one surfactant selected from the group consisting of a secondary alcohol ethoxylate, fatty alcohol ethoxylate, nonylphenol ethoxylate, tridecyl ethoxylate, and polyoxyethylene ether, wherein the presence of the surfactant increases the degradation of lignocellulosic material compared to the absence of the surfactant; (b) fermenting the saccharified lignocellulosic material of step (a) with one or more fermentating microoganisms; and (c) recovering the organic substance from the fermentation.
REFERENCES:
patent: 4539353 (1985-09-01), Abel et al.
patent: 5705369 (1998-01-01), Torget et al.
patent: 5713962 (1998-02-01), Scialla et al.
patent: 5919691 (1999-07-01), Schulein et al.
patent: 5972872 (1999-10-01), Lange et al.
patent: 6001639 (1999-12-01), Schulein et al.
patent: 6099688 (2000-08-01), Pere et al.
patent: 6387690 (2002-05-01), Schulein et al.
patent: 2003/0124710 (2003-07-01), Borch et al.
Kaar et al., “Benefits from Tween During Enzymic Hydrolysis of Corn Stover”,Biotechnol. Bioengg., 1998, vol. 59, No. 4, pp. 419-427.
Kurakake M et al., “Pretreatment of Bagasse by Nonionic Surfactant for the Enzymatic Hydrolysis”,Bioresource Technology, 1994, vol. 49, No. 3, pp. 247-251.
Park et al., “Effects of Nonionic Surfactant on Enzymatic Hydrolysis of Used Newspaper”,Biotechnol. Bioengg., 1992, vol. 39, No. 1, pp. 117-120.
Adams CD et al, “Biodegradation of Nonionic Surfactants and Effects of Oxidative Pretreatment”,J. Environ. Engg., 1996, vol. 122, No. 6, pp. 477-483.
Cherry Joel
Vlasenko Elena
Xu Feng
Lilling Herbert J.
Novozymes, Inc.
Starnes Robert L.
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