✦ LIBER ✦
Structural characterization and rheological properties of an extracellular glucuronan produced by a Rhizobium meliloti M5N1 mutant strain
✍ Scribed by Alain Heyraud; Josiane Courtois; Luciana Dantas; Philippe Colin-Morel; Bernard Courtois
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 511 KB
- Volume
- 240
- Category
- Article
- ISSN
- 0008-6215
No coin nor oath required. For personal study only.
✦ Synopsis
The mutant strain M5Nl C.S. (NCIMB 40472) of Rhizobium meliloti M5Nl is able to produce during fermentation a partially acetylated extracellular (1 --f 4)fl-o-glucuronan. At low concentration (1 g.l-'1, in the presence of monovalent cations, this new glucuronate behaves as a thickening agent, whereas at higher concentration a thermoreversible gel is obtained. With such divalent cations as Ca'+, a thermally stable gel can be formed.