Abstract: System and process are provided for fixation of carbon dioxide through fermentation. More specifically, the disclosure includes fermenting carbon dioxide into methane through methanogenic archaea. The disclosure further provides the integration of methanogenic fermentation with additional processes to achieve improved carbon efficiency.

Abstract: System and process are provided for fixation of carbon dioxide through fermentation. More specifically, the disclosure includes fermenting carbon dioxide into methane through methanogenic archaea and producing single cell protein nutrient supplement. The disclosure further provides the integration of methanogenic fermentation with additional processes to achieve improved carbon efficiency.

Abstract: System and process are provided for producing and obtaining valuable products that are derived from microbial fermentation of C1-containing gaseous substrate process. More specifically, the disclosure provides schemes for the integration of a fermentation process with electrolysis process and C1-containing gaseous substrate generating process while achieving reduced carbon dioxide emission. The amount of carbon dioxide subject to the electrolysis process is based on the balance of raw material consumption of the microbial fermentation process.

Abstract: Protein-rich nutrient supplements and animal feed supplements derived from an anaerobic bacterial process are generated through a myriad of cell rupturing and protein fractionation/purification processes. Bacterial fermentation systems and methods of obtaining one or more protein-containing portions from a fermentation process using carbon monoxide-containing gaseous substrates are provided. The invention further provides compositions of protein-rich nutrient supplements with useful applications for intake by a variety of different animals and humans.