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:
Jul. 07, 2020
Filed:
Mar. 01, 2017
Bayer Cropscience Lp, Research Triangle Park, NC (US);
Chad Kimmelshue, Ames, IA (US);
Yan Li, Citrus Heights, CA (US);
Colleen S. Taylor, Folsom, CA (US);
Hong Zhu, West Sacramento, CA (US);
Bayer CropScience LP, St. Louis, MO (US);
Abstract
The present invention provides a method of enriching a lipopeptide in a microbial cell culture, the method comprising mixing an amphiphilic sulfonate and/or an amphiphilic sulfate with the cell culture to induce the formation of aggregates containing the lipopeptide, centrifuging the cell culture to generate a supernatant fraction and a pellet fraction, separating the pellet fraction from the supernatant fraction, and mixing the pellet fraction with a polyoxyethylene glycol alkyl ether to release the lipopeptide from the aggregates. Also provided is a method of purifying an exopolysaccharide from a microbial cell culture, the method comprising mixing an amphiphilic sulfonate and/or an amphiphilic sulfate with the cell culture to induce the formation of aggregates, centrifuging the cell culture to generate a supernatant fraction and a pellet fraction, separating the supernatant fraction from the pellet fraction, adding alcohol to the supernatant fraction to precipitate the exopolysaccharide; and removing the precipitated exopolysaccharide from the supernatant fraction.