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Accumulation of poly (3-hydroxybutyric acid) by some soil Streptomyces
A MANNA, R BANERJEE, A K PAUL
Published in SPRINGER VERLAG
1999
Volume: 39
   
Issue: 3
Pages: 153 - 158
Abstract
In a limited-scale survey, 55 soil streptomycetes were screened for the accumulation of poly (3-hydroxybutyrate) [PHB]. Only 18% of the isolates accumulated PHB ranging between 1.9-7.8% of the dry biomass. The promising isolate DBCC-719, identified as Streptomyces griseorubiginosus, accumulated PHB amounting to 9.5% of the mycelial dry mass in the early stationary phase when grown in chemically defined medium with 2% (wt/vol) glucose as the sole source of carbon. Nitrogen-limiting conditions were inhibitory to growth and PHB accumulation. The isolated polymer was highly soluble in chloroform, gave a sharp peak at 235 nm on digestion with concentrated H2SO4, and had a characteristic infrared spectrum.
About the journal
JournalData powered by TypesetCurrent Microbiology
PublisherData powered by TypesetSPRINGER VERLAG
ISSN0343-8651