Isolation and structure of an extracellular polysaccharide from streptomyces sp. FERM-P1185.
A streptomycete strain (FERM-P1185), isolated from soil, secreted a slime on glucose-asparagine agar, and produced viscous growth in liquid media containing peptone as nitrogen source. A purified polysaccharide isolated from the culture broth was composed of glucose and mannose units (molar ratio 1-87:1). Periodate oxidation, Smith degradation, methylation analysis, infrared and 13c nuclear magnetic resonance spectra indicated that this mannoglucan had a linear structure consisting of alpha-1,3- and alpha-1,4-linked glucopyranose and mannopyranose units.
D055598:Chemical Phenomena; D002621:Chemistry; D005947:Glucose / Q000032:analysis; D008358:Mannose / Q000032:analysis; D011135:Polysaccharides, Bacterial / Q000302:isolation & purification; D012988:Soil Microbiology; D013302:Streptomyces / Q000032:analysis*
D011135:Polysaccharides, Bacterial; D005947:Glucose; D008358:Mannose