专利名称：A METHOD FOR SEPARATING, EXTRACTING
AND PURIFYING POLY-BETA-HYDROXYALKANOATES (PHAS) DIRECTLYFROM BACTERIAL FERMENTED BROTH
发明人：CHEN, Xuejun, Tianan Biologic Material Co.,
Ltd.
申请号：EP03782063.6申请日：20031219公开号：EP1705250B9公开日：20131204
摘要：The invention discloses a method for directly separating and purifyingpolyhydroxyalkanoates in cells from fermentation liquid and it relates to the field ofposttreatment technology of biological engineering. The method includes followingsteps: pretreating fermentation liquid with physical method for breaking cell wall;adjusting pH value of pretreated fermentation liquid to alkaline; adding anionicsurfactant; reacting under agitation; separating and extracting coagulated precipitatefrom reaction liquid; washing and drying. The invention has the advantage of simpletechnology, low cost, high extraction yield and no pollution, and large scale industrializedproduction can be realized.
申请人：TIANAN BIOLOG MATERIAL CO LTD NINGBO
地址：CN
国籍：CN
代理机构：Schlief, Thomas P.
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