DETOXIFICATION OF BIOMASS DERIVED ACETATE VIA METABOLIC CONVERSION TO ETHANOL, ACETONE, ISOPROPANOL, OR ETHYL ACETATE

One aspect of the invention relates to a genetically modified thermophilic or mesophilic microorganism, wherein a first native gene is partially, substantially, or completely deleted, silenced, inactivated, or down-regulated, which first native gene encodes a first native enzyme involved in the meta...

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Hauptverfasser: ARGYROS, AARON, HOGSETT, DAVID A, XU, HAOWEN, SILLERS, WILLIAM RYAN, FROEHLICH, ALLAN C, MCBRIDE, JOHN E, LICHT, STEVE, RAJGARHIA, VINEET B, GILBERT, ALAN BENJAMIN, SHAW IV, ARTHUR J, VAN DIJKEN, HANS
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:One aspect of the invention relates to a genetically modified thermophilic or mesophilic microorganism, wherein a first native gene is partially, substantially, or completely deleted, silenced, inactivated, or down-regulated, which first native gene encodes a first native enzyme involved in the metabolic production of an organic acid or a salt thereof, thereby increasing the native ability of said thermophilic or mesophilic microorganism to produce lactate or acetate as a fermentation product. In certain embodiments, the aforementioned microorganism further comprises a first non-native gene, which first non-native gene encodes a first non-native enzyme involved in the metabolic production of lactate or acetate. Another aspect of the invention relates to a process for converting lignocellulosic biomass to lactate or acetate, comprising contacting lignocellulosic biomass with a genetically modified thermophilic or mesophilic microorganism.