申请人:Bayer CropScience LP
公开号:EP2765200A1
公开(公告)日:2014-08-13
The invention relates to a fermentation broth obtained by cultivating a gougerotin producing Streptomyces strain, wherein the fermentation broth contains at least about 1 g/L gougerotin. The invention also relates to a method of producing a fermentation broth of a gougerotin producing Streptomyces strain, wherein the fermentation broth contains at least about 1 g/L gougerotin, the method comprising cultivating the Streptomyces strain in a culture medium containing a digestible carbon source and a digestible nitrogen source under aerobic conditions, wherein the culture medium contains an amino acid at a concentration effective to achieve a gougerotin concentration of at least 1 g/L.
本发明涉及一种通过培养产生钩吻菌素的链霉菌株获得的发酵液,其中发酵液含有至少约1 g/L钩吻菌素。 本发明还涉及一种生产产生钩藤素的链霉菌株的发酵液的方法,其中发酵液含有至少约1克/升钩藤素,该方法包括在好氧条件下,在含有可消化碳源和可消化氮源的培养基中培养链霉菌株,其中培养基含有一种氨基酸,其浓度能有效地使钩藤素浓度达到至少1克/升。