Method of adjusting the pH of a pretreatment solution using carbon dioxide useful for integrating saccharification and fermentation of a biomass

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United States of America Patent

PATENT NO 11976311
APP PUB NO 20210214757A1
SERIAL NO

17099488

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Abstract

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The present invention provides for a method of fermenting or saccharifying a biomass comprising: (a) (i) contacting a biomass comprising a polysaccharide, and an ionic liquid (IL) to form a first solution, or (ii) providing the first solution comprising the biomass and the IL, (b) contacting the first solution and carbon dioxide such that the first solution results in a lower pH, (c) introducing (i) an enzyme capable of enzymatically to breakdown at least one bond in the polysaccharide or a breakdown product of the polysaccharide, and/or (ii) a microorganism that capable of producing the enzyme and/or fermenting the polysaccharide or a breakdown product of the polysaccharide, such that the polysaccharide is at least partially broken down and the first solution is transformed into a second solution.

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Patent Owner(s)

Patent OwnerAddress
NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA LLCP O BOX 5800 MS-0161 ALBUQUERQUE NM 87185

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shi, Jian Albany, US 115 925
Simmons, Blake A San Francisco, US 56 520
Singh, Seema Mountain House, US 37 224
Sun, Jian Albany, US 393 5868

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