A method of obtaining a compound may include adding a substrate to a medium in a reactor, and reacting the substrate in the reactor to form the compound. A first stream is separated from the reaction liquid through a first membrane. A second stream is separated from the reaction liquid through a second membrane. The first membrane is a filtration membrane and the second membrane is configured for liquid-gas or liquid-liquid extraction The first membrane and the second membrane are at least partially immersed in the medium and are moved relative to the reactor during the separation steps.

Described herein are fermention organisms, such as yeasts, comprising a genetic modification that increases or decreases expression of a transporter or regulator thereof, such as yeasts that express the FOT2 and FOTX transporters of SEQ ID NOs: 163 and 164. Also described are processes for producing a fermentation product, such as ethanol, from starch or cellulosic-containing material with the fermenting organisms.

Described herein are fermention organisms, such as yeasts, comprising a genetic modification that increases or decreases expression of a transporter or regulator thereof, such as yeasts that express the FOT2 and FOTX transporters of SEQ ID NOs: 163 and 164. Also described are processes for producing a fermentation product, such as ethanol, from starch or cellulosic-containing material with the fermenting organisms.

Systems and methods to provide renewable transportation fuels for internal combustion engines by converting renewable feedstocks into two or more intermediate hydrocarbon blend stocks and blending at least two of the two or more intermediate hydrocarbon blend stocks to produce the renewable transportation fuel. Methods and/or processes may include selecting sugar from a sugar source and introducing the sugar into one or more reactors. The sugar may be converted into an intermediate renewable hydrocarbon blend stock and sent to a separation unit to separate out an intermediate renewable gasoline unit. The process may include selecting and converting a lipid from a lipid source into a renewable diesel product. The renewable diesel product may be sent to a second separation unit to separate out renewable diesel and a low-grade naphtha. The low-grade naphtha and intermediate renewable gasoline may be blended to define a finished renewable gasoline.

The present disclosure concerns using an inactivated yeast product made from a yeast host cell to increase the yield of a fermentation product from a fermenting yeast host cell. The inactivated yeast extract can be formulated as a liquefaction or fermentation additive and can be used to improve the yield of a fermented product such as ethanol.

The present disclosure concerns using an inactivated yeast product made from a yeast host cell to increase the yield of a fermentation product from a fermenting yeast host cell. The inactivated yeast extract can be formulated as a liquefaction or fermentation additive and can be used to improve the yield of a fermented product such as ethanol.

A method for producing metabolites that are heavy alcohols, and particularly branched-chain alcohols is provided, involving contacting a suitable substrate with recombinant microorganisms. The microorganisms contain at least one deletion, disruptions, or mutations from the GLN gene family, VPS gene family, GNP gene family, AVT gene family, GCN gene family, or YDR391C, and combinations thereof, and overproduce the heavy alcohol as compared to a wild-type yeast strain.

The disclosure relates to methods of capturing carbon by microbial fermentation of a gaseous substrate comprising CO into one or more first products which, in turn, may be incorporated into an article of manufacture or one or more second products. Further, the disclosure relates to improving carbon capture and/or efficiency.

The disclosure relates to methods of capturing carbon by microbial fermentation of a gaseous substrate comprising CO into one or more first products which, in turn, may be incorporated into an article of manufacture or one or more second products. Further, the disclosure relates to improving carbon capture and/or efficiency.

The present disclosure relates to a composition for preparing hexanol or butanol and a method for preparing hexanol or butanol using ethanol and synthesis gas, wherein the composition according to an aspect of the present disclosure is a medium composition containing ethanol as an active ingredient, and by culturing a strain producing hexanol or butanol after inoculating with a medium containing the composition and supplying synthesis gas, hexanol or butanol can be prepared economically using inexpensive synthesis gas, and hexanol or butanol can be prepared with high efficiency by focusing the flow of a carbon source consumed in a fermentation process to the production of hexanol or butanol.