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. 2012 Oct 17;7(10):e46914. doi: 10.1371/journal.pone.0046914

Figure 3. Electrospray mass spectrometric detection (QTrap system) of genistein-di-O-hexosides and genistein-O-disaccharides formed by C. elegans.

Figure 3

(A) MS/MS spectrum of metabolite M7, assigned to a genistein-disaccharide with a proposed chemical structure. (B) MS/MS spectrum of metabolite M1, identified as genistein-4′,7-di-O-ß-D-glucoside using a standard compound. (C) MS/MS spectrum of metabolite M3, characterized as a genistein-di-O-hexoside. (D) Proposed structures of the product ions observed in the MS/MS spectra shown under (A), (B) and (C). Hex, Hexose.