Profiling of Phytochemicals in Tissues from Sclerocarya birrea by HPLC-MS and Their Link with Antioxidant Activity
Figure 3
ESI-MS/MS spectra of various oligomers of galloylated procyanidins: (a) monogalloylated procyanidin or P1G1 (peaks 11 and 31), (b) monogalloylated procyanidin dimer B or P2G1 (peak 5); (c) digalloylated procyanidin dimer B or P2G2 (peaks 8 and 33), and (d) trigalloylated procyanidin trimer C or P3G3 (peak 29). The loss of galloyl residue (152 Da) is illustrated with dashed arrow while the elimination of the epicatechin unit (288 Da) is represented with dotted arrow.
