- Patent Title: Mutant bacterial strains of the genus sphingomonas deficient in production of polyhydroxybutyrate and a process of clarification of sphingans and compositions thereof
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Application No.: US15060780Application Date: 2016-03-04
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Publication No.: US09725523B2Publication Date: 2017-08-08
- Inventor: Stan Bower , Ellen Burke , Nancy E. Harding , Yamini N. Patel , J. Carrie Schneider , Dagmar Meissner , Neil A. Morrison , Ralph Bezanson
- Applicant: CP Kelco U.S., Inc.
- Applicant Address: US GA Atlanta
- Assignee: CP KELCO U.S., INC.
- Current Assignee: CP KELCO U.S., INC.
- Current Assignee Address: US GA Atlanta
- Agency: Eversheds Sutherland (US) LLP
- Main IPC: C08B37/00
- IPC: C08B37/00 ; C12N1/20 ; C12P7/62 ; C12P19/04 ; A23L29/269 ; A23L21/10 ; A23L21/15
Abstract:
The invention relates to mutant strains of the genus Sphingomonas which have a mutation in at least one gene encoding a protein involved in polyhydroxybutyrate (“PHB”) synthesis that allows the mutant strains to produce PHB-deficient Sphingans. The invention is also directed to a process for preparing a clarified Sphingan solution comprising heating aqueous Sphingan solution, in particular PHB-deficient Sphingan solution, to a clarification temperature of about 30° C. to about 70° C., and treating the solution with a clarification agent and enzymes. In addition, the invention is directed to a food or industrial product comprising a PHB-deficient and/or clarified Sphingan. One particular embodiment of the invention is directed to a clarified, PHB-deficient high-acyl gellan and the processes of making thereof.
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