Method for producing surfactin and salt thereof,申请号US201113876734-传众专利搜索

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发明名称	Method for producing surfactin and salt thereof
摘要	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 C9-13 alkyl group or a C9-13 branched alkyl group; and M is an alkali metal, an alkaline earth metal, an optionally-substituted amine or the like.
申请公布号	US8883968(B2)	申请公布日期	2014.11.11
申请号	US201113876734	申请日期	2011.09.30
申请人	Kaneka Corporation	发明人	Izumida Masashi;Kawasaki Hiroaki;Moroshima Tadashi
分类号	C07K1/14;C07K1/30;C07K7/06;C07K1/36	主分类号	C07K1/14
代理机构	Novak Druce Connolly Bove + Quigg LLP	代理人	Novak Druce Connolly Bove + Quigg LLP
主权项	1. A method for producing a surfactin or a salt thereof, comprising the steps of adding an organic solvent containing a branched alkyl alcohol and an auxiliary solvent 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 a total ratio of the branched alkyl alcohol and the auxiliary solvent is not less than 0.6 parts by weight and not more than 1.5 parts by weight relative to 1 part by weight of the culture fluid, and 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 C9-13 linear alkyl group or a C9-13 branched alkyl group; and M is a hydrogen, an alkali metal, an alkaline earth metal, or an optionally-substituted amine.
地址	Osaka JP

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