4-O-β-ᴅ-Glucosides of Hydroxybenzoic and Hydroxycinnamic Acids — Their Synthesis and Determination in Berry Fruit and Vegetable

Abstract

Protocatechuic acid-4-, gallic acid-4-, caffeic acid-4-, ferulic acid- and p-coumaric acid-O-β-ᴅ-glucoside were synthesized. These substances were characterized by UV, 1 H NMR, 13 C NMR and FAB-MS. Their proportions in berry fruit and vegetable were determined by means of HPLC and capillary GC.