Bioavailable Concentrations of Delphinidin and Its Metabolite, Gallic Acid, Induce Antioxidant Protection Associated with Increased Intracellular Glutathione in Cultured Endothelial Cells

Table 1

Chromatographic and mass spectrometric properties of delphinidin and its degradation products.

Peak number	RT (min)	Abs max (nm)	[M + H]	[M − H]	Putative identification
1	0.43	220, 270	N/A	169.01	Gallic acid
2	2.02	224, 320	321.06	319.04	Chalcone
3	2.13	227, 291	155.03	153.02	Aldehyde
4	2.30	280, 529	303.05	N/A	Delphinidin