[Strain of Pseudomonas aeruginosa--producer of bioPAV].
A Pseudomonas aeruginosa strain producing an extracellular surfactant (biosurfactant) was isolated. The growth of this strain, referred to as 50.3, on a mineral glycerol-containing medium produces an emulsifying activity (60%) and decreases the surface tension of the culture liquid by a factor of 2.8 (to 25 mN/m). The optimum conditions for its growth and production of biosurfactants: intense aeration, pH 7.0-8.0, and the presence of Mg2+. The optimum biosurfactant properties were achieved when glucose was used as the only source of carbon and energy and NH4Cl was used as a source of nitrogen. The biosurfactant was isolated from the culture liquid by extraction and precipitation.
Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, pr. Entuziastov 13, Saratov, 410015 Russia.
O V
OV
Turkovskaia
T V
TV
Dmitrieva
A Iu
AIu
Muratova
D011550:Pseudomonas aeruginosa / Q000302:isolation & purification* / Q000378:metabolism*; D012988:Soil Microbiology; D013501:Surface-Active Agents / Q000378:metabolism*
D013501:Surface-Active Agents