what is protocatechuic acid and what are its functions_kain industrial additives
overview【1】【2】 protocatechuic acid (pca) is 3,4-dihydroxybenzoic acid. is a simple phenolic acid that is a precursor for the synthesis of other complex molecules such as anthocyanin 3-o-β-d-glucoside and vanillin. it is found in edible vegetables, fruits, nuts, brown rice, pecans, tea, hibiscus flowers, and some chinese herbal medicines. protocatechuic acid has a variety of biological…

