[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.
Turkovskaia
O V
OV
Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, pr. Entuziastov 13, Saratov, 410015 Russia.
Dmitrieva
T V
TV
Muratova
A Iu
AIu
D011550:Pseudomonas aeruginosa / Q000302:isolation & purification* / Q000378:metabolism*; D012988:Soil Microbiology; D013501:Surface-Active Agents / Q000378:metabolism*
D013501:Surface-Active Agents