title: Biosurfactant production using molasses and whey under thermophilic conditions.
abstract: Biosurfactant production was studied by Bacillus licheniformis K51, B. subtilis 20B, B. subtilis R1 and Bacillus strain HS3 using molasses or cheese whey as a sole source of nutrition at 45 degrees C. The isolates were able to grow and produce biosurfactant under shaking as well as static conditions. Maximum biosurfactant production was achieved with molasses at 5.0-7.0% (w/v). The biosurfactant retained its surface-active properties after incubation at 80 degrees C at a wide range of pH values and salt concentrations for nine days. Oil displacement experiments in sand pack columns with crude oil showed 25-33% recovery of residual oil.
authors.affiliation: Department of Microbiology and Biotechnology Centre, The Maharaja Sayajirao University of Baroda, Vadodara, India.
authors.forename: Sanket
authors.initials: S
authors.lastname: Joshi
authors.forename: Chirag
authors.initials: C
authors.lastname: Bharucha
authors.forename: Sujata
authors.initials: S
authors.lastname: Jha
authors.forename: Sanjay
authors.initials: S
authors.lastname: Yadav
authors.forename: Anuradha
authors.initials: A
authors.lastname: Nerurkar
authors.forename: Anjana J
authors.initials: AJ
authors.lastname: Desai
mesh_terms: D001407:Bacillus / Q000145:classification / Q000254:growth & development / Q000378:metabolism*; D019149:Bioreactors / Q000382:microbiology; D018929:Cell Culture Techniques / Q000379:methods; D006863:Hydrogen-Ion Concentration; D008894:Milk Proteins / Q000378:metabolism*; D008965:Molasses / Q000382:microbiology*; D012492:Salts / Q000378:metabolism; D013501:Surface-Active Agents / Q000378:metabolism*; D013696:Temperature; D013997:Time Factors; D014865:Waste Disposal, Fluid / Q000379:methods*; D000067816:Whey Proteins
chemical_list: D008894:Milk Proteins; D012492:Salts; D013501:Surface-Active Agents; D000067816:Whey Proteins