Structure of a Rhamnogalacturonan Fragment from Apple Pectin: Implications for Pectin Architecture

Figure 3

The MALDI-TOF-MS spectrum of P14. The major ions peaks at 837.33 and 859.31 correspond to [Rha₂GalA₃-H]⁻ and [Rha₂GalA₃-2H+Na]⁻, respectively.