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 polysacch...

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Veröffentlicht in:Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2003-01, Vol.67 (1), p.8-14
Hauptverfasser: Kurata, S. (Kankyo Engineering Corp., Kimitsu, Chiba (Japan)), Yamada, K, Takatsu, K, Hanada, S, Koyama, O, Yokomaku, T, Kamagata, Y, Kanagawa, T, Kurane, R
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Sprache:eng
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Zusammenfassung: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.
ISSN:0916-8451
1347-6947
DOI:10.1271/bbb.67.8