Clarification of sphingans and compositions thereof

Details Clarification of sphingans and compositions thereof Clarification of sphingans and compositions thereof

2011-02-15

2011-02-15

Hendricks, Keith D (Department: 1781)

Food or edible material: processes, compositions, and products

Products per se, or processes of preparing or treating...

Gels or gelable composition

C426S271000

Reexamination Certificate

active

07887866

ABSTRACT:
The invention relates to mutant strains of the genusSphingomonaswhich 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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