GLYCOSIDIC CONJUGATES OF ALIPHATIC-ALCOHOLS FROM APPLE FRUIT (MALUS-SYLVESTRIS MILL CULT JONATHAN)

In an extract obtained from neutralized apple juice, cult. Jonathan, by liquid chromatographic separation on Amberlite XAD resin, 2-methylbutyl, hexyl, and 3-hydroxyoctyl β-D-glucopyranoside as well as 2-methylbutyl and hexyl 6-O-α-L-arabinofuranosyl-β-D-glucopyranoside were identified after per-O-methylation by capillary gas chromatography (HRGC) and coupled HRGC techniques, i.e., HRGC-mass spectrometry (HRGC-MS) and HRGC-Fourier transform infrared spectroscopy (HRGC-FTIR). The dissaccharide glycosides were additionally characterized by1H and13C NMR spectroscopies after preparative HPLC of the per-O-methylated glycosidic extracts on silica gel. © 1990, American Chemical Society. All rights reserved.