Cyclic (1 → 2)-β-d-glucans (cyclosophorans) produced by Agrobacterium and Rhizobium species
✍ Scribed by Makoto Hisamatsu
- Book ID
- 107727145
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 653 KB
- Volume
- 231
- Category
- Article
- ISSN
- 0008-6215
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📜 SIMILAR VOLUMES
## In addition to cellular glycogen and an acidic exopolysaccharide of high molecular weight, Rhizobium mefifoti (5 strains) produces a cyclic (1+2)-p-D-glucan (d.p. -20) that accumulates in the cells, and a pyruvylated and succinylated octasaccharide that is excreted into the medium. The octasacc
Ten strains of R/zi~o~ium tested produced extracellular, cyclic (142)$-r)glucan, and five of ten strains produced the linear octasaccharide repeating-units of the extracellular, acidic polysaccharides. --..\_\_ \*This work was supported, in part, by Grant 571110088 from the Ministry of Education and
We developed a mutant strain, which showed a higher -glucan production than the parent strain, Agrobacterium sp. ATCC 31750. A batch fermentation was carried out in a 300 l stirred tank reactor. A maximum -glucan concentration of 76 g/l was obtained in 120 h of cultivation with the mutant strain,