The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2014
Filed:
Sep. 30, 2011
Masashi Izumida, Takasago, JP;
Hiroaki Kawasaki, Takasago, JP;
Tadashi Moroshima, Takasago, JP;
Kaneka Corporation, Osaka, JP;
Abstract
The method for producing a surfactin or a salt thereof according to the present invention comprises the steps of adding an organic solvent containing a branched alkyl alcohol to a culture fluid containing the surfactin or the salt thereof, or to a solution obtained by removing an insoluble component from the culture fluid, and extracting the surfactin or the salt thereof with the organic solvent, wherein the surfactin or the salt thereof is represented by the formula (1): wherein * indicates an optically active center; X is an amino acid selected from leucine, isoleucine and valine; R is a Calkyl group or a Cbranched alkyl group; and M is an alkali metal, an alkaline earth metal, an optionally-substituted amine or the like.