Methods for degrading or converting plant cell wall polysaccharides
First Claim
1. A method for degrading or converting plant cell wall polysaccharides into one or more products, comprising:
- treating the plant cell wall polysaccharides with an effective amount of a Trichoderma reesei spent whole cellulase broth, wherein the Trichoderma reesei spent whole cellulase broth further comprises a heterologous beta-glucosidase, which degrades or converts the plant cell wall polysaccharides into the one or more products, wherein the Trichoderma reesei spent whole cellulase broth comprises cell mass in an amount of 20-30% of the volume.
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Abstract
The present invention relates to methods for converting plant cell wall polysaccharides into one or more products, comprising: treating the plant cell wall polysaccharides with an effective amount of a spent whole fermentation broth of a recombinant microorganism, wherein the recombinant microorganism expresses one or more heterologous genes encoding enzymes which degrade or convert the plant cell wall polysaccharides into the one or more products. The present invention also relates to methods for producing an organic substance, comprising: (a) saccharifying plant cell wall polysaccharides with an effective amount of a spent whole fermentation broth of a recombinant microorganism, wherein the recombinant microorganism expresses one or more heterologous genes encoding enzymes which degrade or convert the plant cell wall polysaccharides into saccharified material; (b) fermenting the saccharified material of step (a) with one or more fermenting microoganisms; and (c) recovering the organic substance from the fermentation.
15 Citations
16 Claims
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1. A method for degrading or converting plant cell wall polysaccharides into one or more products, comprising:
- treating the plant cell wall polysaccharides with an effective amount of a Trichoderma reesei spent whole cellulase broth, wherein the Trichoderma reesei spent whole cellulase broth further comprises a heterologous beta-glucosidase, which degrades or converts the plant cell wall polysaccharides into the one or more products, wherein the Trichoderma reesei spent whole cellulase broth comprises cell mass in an amount of 20-30% of the volume.
- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for producing one or more organic substances, comprising:
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(a) saccharifying plant cell wall polysaccharides with an effective amount of a Trichoderma reesei spent whole cellulase broth, wherein the Trichoderma reesei spent whole cellulase broth further comprises a heterologous beta-glucosidase, which degrades or converts the plant cell wall polysaccharides into saccharified material, wherein the Trichoderma reesei spent whole cellulase broth comprises cell mass in an amount of 20-30% of the volume; (b) fermenting the saccharified material of step (a) with one or more fermenting microoganisms; and (c) recovering the one or more organic substances from the fermentation. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification