title: Characterization of cyclitol glycosides by gas chromatography coupled to mass spectrometry.
abstract: Several cyclitol glycosides have been characterised as trimethylsilyl derivatives by their gas chromatographic (GC) retention data (linear retention indices) and electron impact mass spectrometric (MS) profiles. Both GC-MS results have been related to cyclitol glycosides structural features. Abundance ratios of characteristic m/z ions 133/129 and 260/265 have been proposed to distinguish glycosyl-inositols from glycosyl-methyl-inositols. These ratios in combination with the presence or absence of m/z 375 ion allowed the unequivocal characterization of cyclitol glycosides. These criteria have been applied to the characterization of new cyclitol glycosides in chickpea (Cicer arietinum) and adzuki bean (Vigna angularis) and in leaves of Coriaria myrtifolia and Coriaria ruscifolia.
authors.affiliation: Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
authors.forename: L
authors.initials: L
authors.lastname: Ruiz-Aceituno
authors.affiliation: Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Carrero-Carralero
authors.affiliation: Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
authors.forename: A I
authors.initials: AI
authors.lastname: Ruiz-Matute
authors.affiliation: Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
authors.forename: L
authors.initials: L
authors.lastname: Ramos
authors.affiliation: Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain. Electronic address: mlsanz@iqog.csic.es.
authors.forename: M L
authors.initials: ML
authors.lastname: Sanz
authors.affiliation: Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006, Madrid, Spain.
authors.forename: I
authors.initials: I
authors.lastname: Martínez-Castro
mesh_terms: D054812:Cyclitols / Q000737:chemistry* / Q000302:isolation & purification; D008401:Gas Chromatography-Mass Spectrometry; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D007294:Inositol / Q000737:chemistry; D064209:Phytochemicals / Q000737:chemistry; D010944:Plants / Q000737:chemistry
chemical_list: D054812:Cyclitols; D006027:Glycosides; D064209:Phytochemicals; D007294:Inositol
keywords: Adzuki bean; Chickpea; Coriaria; Gas chromatography-mass spectrometry; Glycosyl-inositols; Glycosyl-methyl-inositols