title: Utilization of sweetwater as a cost-effective carbon source for sophorolipids production by Starmerella bombicola (ATCC 22214).
abstract: Biosurfactants are microbially synthesized surfactants that are environmental friendly due to low toxicity. Sophorolipid is one of the simplest biosurfactants with well-defined structure produced by Starmerella bombicola(ATCC 22214) on glucose and vegetable oil as the carbon source. The raw material cost accounts for 10-30% of the overall cost. Glycerol is readily available from a commercial fat-splitting process as sweetwater at a very low cost. Sophorolipids was synthesized using glycerol and sweetwater as a cost-effective carbon source. The glycerol was further replaced with sweetwater as a source of glycerol. Optimum glycerol concentration was 15% w/v with 10% w/v sunflower oil, giving 6.6 g/L of sophorolipids. The crude sophorolipid contains two major components; both of them were lactonic sophorolipids as analyzed by reverse-phase high-performance liquid chromatography (RP-HPLC), liquid chromatography-mass spectroscopy (LC-MS), and nuclear magnetic resonance ((1)H-NMR).
authors.affiliation: Department of Oils, Oleochemicals and Surfactants Technology, Institute of Chemical Technology, Mumbai, India.
authors.forename: S D
authors.initials: SD
authors.lastname: Wadekar
authors.forename: S B
authors.initials: SB
authors.lastname: Kale
authors.forename: A M
authors.initials: AM
authors.lastname: Lali
authors.forename: D N
authors.initials: DN
authors.lastname: Bhowmick
authors.forename: A P
authors.initials: AP
authors.lastname: Pratap
mesh_terms: D002175:Candida / Q000378:metabolism*; D002244:Carbon / Q000378:metabolism; D002851:Chromatography, High Pressure Liquid; D005990:Glycerol / Q000378:metabolism*; D006017:Glycolipids / Q000378:metabolism*; D007218:Industrial Microbiology / Q000191:economics / Q000379:methods*; D013501:Surface-Active Agents / Q000378:metabolism*; D014867:Water / Q000378:metabolism
chemical_list: D006017:Glycolipids; D013501:Surface-Active Agents; D014867:Water; D002244:Carbon; D005990:Glycerol