01731nas a2200229   4500008004100000022001400041245015000055210006900205260007400274300001200348490000700360520079000367653002201157653005301179653004601232653000901278653001901287653003001306100001901336700002101355856012501376       2012                        eng d  a0141-549200aStructural determination and chemical esterification of the sophorolipids produced by Candida bombicola grown on glucose and alpha-linolenic acid0 aStructural determination and chemical esterification of the soph  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcAPR  a701-7070 v343 a<p>The extracellular surface-active glycolipids produced by the yeast, Candida bombicola when grown on glucose and alpha-linolenic acid, were analyzed by HPLC with electro-spray ionization (ESI-MS) and collision-induced dissociation mass spectrometry. The analysis confirmed that the sophorolipid (SL) mixture contained three different forms of C18:3 SL molecules: free acid, lactone and a diacetylated lactone, which has not been reported previously. Also a minor amount of diacetylated lactone form of C18:1 SL was detected. Further, the SL mixture was subjected to chemical esterification reaction with sodium methoxide. The reaction product was analyzed with ESI-MS and confirmed to be the single homogenous esterified product containing C18:3 moieties in its fatty acid chain.</p>10aCandida bombicola10aCollision-induced dissociation mass spectrometry10aElectrospray ionization mass spectrometry10aHPLC10aLinolenic acid10aSophorolipid methyl ester1 aGupta, Reetika1 aPrabhune, Asmita  uhttps://library.ncl.res.in/content/structural-determination-and-chemical-esterification-sophorolipids-produced-candida-0