Production and characterization of biosurfactant from marine Streptomyces species B3.

The present study demonstrates the production and properties of a biosurfactant isolated from marine Streptomyces species B3. The production of the biosurfactant was found to be higher in medium containing sucrose and lower in the medium containing glycerol. Yeast extract was the best nitrogen source for the production of the biosurfactant. The isolated biosurfactant reduced the surface tension of water to 29 mN/m. The purified biosurfactant was shown critical micelle concentrations of 110 mg/l. The emulsifying activity and stability of the biosurfactant was investigated at different salinities, pH, and temperature. The biosurfactant was effective at very low concentrations over a wide range of temperature, pH, and salt concentration. The purified biosurfactant was shown strong antimicrobial activity. The biosurfactant was produced from the marine Streptomyces sp. using non-hydrocarbon substrates such as sucrose that was readily available and not required extensive purification procedure. Streptomyces species B3 can be used for microbially enhanced oil recovery process.

Khopade A ，Ren B ，Liu XY ，Mahadik K ，Zhang L ，Kokare C ... -  《-》

Production and properties of a biosurfactant obtained from a member of the Bacillus subtilis group (PTCC 1696).

Ghojavand H ，Vahabzadeh F ，Roayaei E ，Shahraki AK ... -  《-》

Optimization, production and characterization of glycolipid biosurfactant from the marine actinobacterium, Streptomyces sp. MAB36.

Manivasagan P ，Sivasankar P ，Venkatesan J ，Sivakumar K ，Kim SK ... -  《-》

Isolation and functional characterization of a biosurfactant produced by Lactobacillus paracasei.

Gudiña EJ ，Teixeira JA ，Rodrigues LR 《-》

Production and physico-chemical characterization of a biosurfactant produced by Pseudomonas aeruginosa OBP1 isolated from petroleum sludge.

Bharali P ，Konwar BK 《-》