Qualitative analysis of phenolic compounds in apple pomace using liquid chromatography coupled to mass spectrometry in tandem mode.
The occurrence of phenolic compounds in apple residues resulting from the juice industry was investigated to provide an alternative use for this raw material. For the identification of these compounds, liquid chromatography coupled to ionspray mass spectrometry in tandem mode (LC/MS/MS) with negative ion detection was used. The residues were first extracted and then chromatographed on Sephadex LH-20 to yield 13 fractions. Positive identification of the compounds was based on their retention times and mass spectra in full scan mode (MS), and in different MS/MS modes (product ion scan, precursor ion scan and neutral loss scan). In this way, 60 compounds, including cinnamic and benzoic acid derivatives and flavonoids, were identified, some of them not previously reported in apple waste.
Departament de Productes Naturals, Biologia Vegetal i Edafologia, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028 Barcelona, Catalonia, Spain.
Ferran
F
Sánchez-Rabaneda
Olga
O
Jáuregui
Rosa Maria
RM
Lamuela-Raventós
Francesc
F
Viladomat
Jaume
J
Bastida
Carles
C
Codina
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004043:Dietary Fiber / Q000032:analysis*; D005419:Flavonoids / Q000032:analysis*; D007220:Industrial Waste / Q000032:analysis*; D027845:Malus; D010636:Phenols / Q000032:analysis*; D059808:Polyphenols; D021241:Spectrometry, Mass, Electrospray Ionization
D004043:Dietary Fiber; D005419:Flavonoids; D007220:Industrial Waste; D010636:Phenols; D059808:Polyphenols