title: Characterisation of fungal lanostane-type triterpene acids by electrospray ionisation mass spectrometry.
abstract: Lanostane-triterpene acids obtained from the culture of the fungus Coriolellus malicola were studied by electrospray mass spectrometry in the negative ion mode using quadrupole time-of-flight and quadrupole ion trap analysers. Despite the differences observed in the mass spectra recorded with these instruments, a set of fragment ions was found to be characteristic of the family, depending on the Delta(7,9(11)) or Delta(8) skeleton and the particular functional group at C-3.
authors.affiliation: Departamento Química Orgánica y UMYMFOR (CONICET), FCEyN, UBA, Ciudad Universitaria, Pab. II (1428) Buenos Aires, Argentina. gabyc@qo.fcen.uba.ar
authors.forename: Gabriela M
authors.initials: GM
authors.lastname: Cabrera
authors.forename: Adriana P
authors.initials: AP
authors.lastname: Vellasco
authors.forename: Laura M
authors.initials: LM
authors.lastname: Levy
authors.forename: Marcos N
authors.initials: MN
authors.lastname: Eberlin
mesh_terms: D000143:Acids / Q000737:chemistry*; D005658:Fungi / Q000737:chemistry*; D015394:Molecular Structure; D021241:Spectrometry, Mass, Electrospray Ionization; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D000143:Acids; D014315:Triterpenes