Carbon dioxide soluble surfactant having two fluoroether CO2-philic tail groups and a head group
AssigneesGenencor International, Inc., University of Pittsburgh
InventorsEric J. Beckman, Eliador J. Ghenciu, Nathaniel T. Becker, Landon M. Steele, Alan J. Russell
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Abstract
There is provided a process for the extraction of water soluble biomaterials such as enzymes or proteins into carbon dioxide utilizing certain carbon dioxide-soluble surfactants. Also provided are certain carbon dioxide-soluble surfactants useful in the extraction of proteins. The surfactants are selected from fluoroether sulfate, fluoroether-polyethylene glycol block copolymer, fluoroether-functional sorbitol, and fluoroether dithiocarbamate chelate.
Claims8
A surfactant comprising at least two fluoroether CO2-philic tail groups and a head group which interacts with and solubilizes in CO2 a water soluble biomaterial selected from the group consisting of proteins, peptides and amino acids, wherein the surfactant is soluble in CO2 and is selected from the group consisting of fluoroether sulfate, fluoroether-polyethylene glycol block copolymer, fluoroether-functional sorbitol, and fluoroether dithiocarbamate chelate.
Dependencies are inferred from the claim text.