title: Secondary metabolism of olive secoiridoids. New microcomponents detected in drupes by electrospray ionization and high-resolution tandem mass spectrometry.
abstract: Olive drupe tissues have been selected as a possible source of information about the secondary metabolism of oleaceae secoiridoids. The structures of a number of new microcomponents, detected and isolated by a combined high-performance liquid chromatography (HPLC)-fraction collector/ultraviolet electrospray ionization mass spectrometry (UV/ESI-MS) apparatus, can be inferred from the data obtained by high-resolution tandem mass spectrometry in a QqTOF instrument. Some of them (1, 2, 3 and 4) are closely correlated to oleuropein. Others, such as neo-nuzhenide (5) and 2''-hydroxyoleuropein (6), typical of other oleaceae families, have never been found in olive tissues.
authors.affiliation: Dipartimento di Chimica, Università della Calabria, cubo 12/C, I-87036 Arcavacata di Rende (CS), Italy.
authors.forename: Leonardo
authors.initials: L
authors.lastname: Di Donna
authors.forename: Fabio
authors.initials: F
authors.lastname: Mazzotti
authors.forename: Anna
authors.initials: A
authors.lastname: Napoli
authors.forename: Raffaele
authors.initials: R
authors.lastname: Salerno
authors.forename: Ashif
authors.initials: A
authors.lastname: Sajjad
authors.forename: Giovanni
authors.initials: G
authors.lastname: Sindona
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005504:Food Analysis / Q000379:methods; D005638:Fruit / Q000378:metabolism*; D039823:Iridoids / Q000032:analysis*; D008832:Microchemistry / Q000379:methods*; D031658:Olea / Q000378:metabolism*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*
chemical_list: D039823:Iridoids