Xanthomonas campestris strain expressing xanthan gum
US5194386A · kind A · utility
2Cited by
1References
1Claims
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Key dates
| Filing date | Feb 13, 1990 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Feb 13, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/91
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A method of increasing xanthan gum production, comprising culturing a Xanthomonas campestris strain having a xanthan-increasing modification in a culture medium, wherein the modification is selected from the group consisting of (1) a mutation causing rifampicin-resistance; (2) a mutation causing bacitracin-resistance; or (3) exogenous genetic information controlling the synthesis of xanthan; and separating xanthan from the culture medium, is provided along with specific DNA sequences and Xanthomonas campestris strains showing increased xanthan gum production.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.