Abstract
The cell growth, production of exopolymers, and the molar ratio of glucose to mannose in the water-soluble non curdlan type exopolymer-B (WSNCE-B), which is one of three exopolymers purified from the culture of Agrobacterium sp., varied with carbon source, culture medium, and initial medium pH. The molar percentage of rhamnose, a minor component in WSNCE-B, varied up to 13%, dependent on physiological conditions. No rhamnose was found in the WSNCE-B purified from the culture with initial medium pH > 6.8. The relative amount of mannose in WSNCE-B increased regularly with the amount of yeast extract added to the mineral salts medium. The relative amounts of glucose, mannose, and rhamnose in the WSNCE-B can be controlled by varying culture conditions.
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Lee, J., Yeomans, W., Allen, A. et al. Microbial production of water-soluble non curdlan type exopolymer-B with controlled composition by agrobacteriumsp. Biotechnology Letters 19, 1217–1221 (1997). https://doi.org/10.1023/A:1018442021914
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DOI: https://doi.org/10.1023/A:1018442021914