Extracellular acidic polysaccharide production by a two-membered bacterial coculture.


A two-membered coculture of strains KYM-7 and KYM-8, identified as Cellulomonas cellulans and Agrobacterium tumefaciens, respectively, produced a large amount of an extracellular polysaccharide, designated APK-78, from starch. Each strain in pure culture produced only very little amount of polysaccharide from starch; the coexistence of the two strains from the early stage of cultivation was indispensable for a large amount of polysaccharide to be produced. The polysaccharide APK-78 was acidic and composed of glucose, galactose, succinic acid, and pyruvic acid with a molar ratio of 8.1:1.0:1.7:1.0, indicating that it is a succinoglycan type of polysaccharide.

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@article{Kurata2003ExtracellularAP, title={Extracellular acidic polysaccharide production by a two-membered bacterial coculture.}, author={Shinya Kurata and Kazutaka Yamada and Kyoko Takatsu and Satoshi Hanada and Osamu Koyama and Toyokazu Yokomaku and Yoichi Kamagata and Takahiro Kanagawa and Ryuichiro Kurane}, journal={Bioscience, biotechnology, and biochemistry}, year={2003}, volume={67 1}, pages={8-14} }