Another butanol PCT to Butamax, PCT/US2013/071036 (WO/2014/081848 )

A PCT of Butamax (PCT/US2013/071036 ) related to butanol production was published on May 30, 2014 with abstract


Provided herein are processes for adjusting a fermentation medium to reduce the activity of one or more carboxylic acids. The processes comprise (a) providing a recombinant microorganism comprising an engineered butanol biosynthetic pathway, (b) contacting the recombinant microorganism with a fermentation medium whereby butanol is produced and wherein the fermentation medium comprises one or more carboxylic acids, and (c) adjusting the fermentation medium to reduce the activity of the one or more carboxylic acids. Also provided are processes for reducing the activity of one or more carboxylic acids in a feed. The processes comprise (a) providing a feed from a fermentation vessel, wherein the feed comprises a composition produced by a recombinant microorganism comprising an engineered butanol biosynthetic pathway, wherein the composition comprises butanol, water, and one or more carboxylic acids; and (b) adjusting the feed, wherein adjusting the feed reduces the activity of the one or more carboxylic acids.



In the "international search report" [ISR], other documents by DuPont / Butamax were cited against PCT '036.