Abstract: Provided is a method for the manufacture of a butyrate product by fermentation of a carbon source-containing fermentation feedstock with a Clostridia class bacterium which natively produces butyric acid while maintaining a pH of about 5 to 7, wherein ammonia is used for said maintaining pH and whereby a fermentation broth comprising ammonium butyrate, a biomass, and optionally a fermentation by-product is formed; separating said biomass from said fermentation broth to form separated biomass and a clarified fermentation broth, wherein said clarified fermentation broth comprises said ammonium butyrate and optionally said fermentation by-product; and adding to said clarified broth an additive selected from the group consisting of a mineral acid, a mineral base, a soluble calcium salt and combinations thereof, whereby said butyrate product is formed in said clarified broth. Further provided are feed ingredients, animal feeds and anti-icing agents comprising the composition, and uses thereof.

Abstract: Supplemented mixotrophic method. A mixotrophic fermentation method is disclosed including providing a naturally acetogenic organism; providing a fermentation medium comprising a carbon source and a supplemented non-sugar reductant; and culturing the organism in the fermentation medium, where both the carbon source and the non-sugar reductant are metabolized and a fermentation broth is formed, which contains at least one carbon-containing bioproduct.

Abstract: Methods for producing a bioproduct selected from acetone, isopropanol and a combination thereof with a microorganism in a fermentor are disclosed. The methods include separating cells of the microorganism from a fermentation broth to form separated cells and recycling at least a fraction of the separated cells to the fermentor to achieve one or more of the following: (1) cell concentration in said fermentor greater than 2 g/L; mass yield on a first feedstock greater than 32%; productivity greater than 0.12 g/L/h; and bioproduct titer greater than 10 g/L.

Abstract: Provided is an improved method for selecting a probiotic microorganism composition, the method comprising providing a first consortium of microorganisms having Microorganism Composition A; providing a first host animal having a first microbiome having Microorganism Composition B; administering said first consortium to said first host animal, whereby said first microbiome is converted to a second microbiome having Microorganism Composition C; collecting a first sample of said second microbiome; and transferring at least a fraction of said first sample and/or said treated first sample onto and/or into a growth medium and incubating at a temperature between 15 degrees Celsius and 70 degrees Celsius to form first selected microorganism composition having Microorganism Composition D; wherein Microorganism Composition A of said first consortium comprises at least 50 different strains; wherein each of Compositions A and B; B and C and D and A differ from each other.

Abstract: An integrated wet-mill method for the production of ethanol and single cell protein. An integrated method for the production of ethanol and a single cell protein product is described including providing corn kernels, which kernels comprise germ, fiber, protein and starch and which method includes, among other things, steeping said corn kernels and separating said steeped kernels from a steep liquor.

Abstract: Mixotrophic fermentation method performed to make one or more bioproducts such as alcohols, organic acids of less than 7 carbons, acetone, 2,3-butanediol and mixtures thereof with a microorganism. The mixotrophic fermentation method includes providing an isolated organism and providing a first feedstock and a second feedstock for use in a fermentation medium. The first feedstock includes a carbon source that is metabolized by the native form of the organism at a rate of less than 0.01 g/hr/g cell mass, and the second feedstock includes CO, CO2, carbonate, bicarbonate, H2, glycerol, methanol, formate, urea or mixtures thereof. The mixotrophic fermentation method also includes culturing the organism in the fermentation medium, whereby both feedstocks are metabolized and a fermentation broth is formed, the broth having at least one bioproduct. Optionally, the bioproduct may be separated from the broth.

Abstract: The present invention relates a recombinant Clostridium expressing one or more heterologous Wood-Ljungdahl (WL) genes. In particular, the recombinant Clostridium produces a metabolite at an increased level. The present invention also relates to a method for producing a metabolite by the recombinant Clostridium.

Abstract: The present invention relates a recombinant Clostridium expressing one or more heterologous Wood-Ljungdahl (WL) genes. In particular, the recombinant Clostridium produces a metabolite at an increased level. The present invention also relates to a method for producing a metabolite by the recombinant Clostridium.