Chlorogenic acid Biosynthesis and natural occurrence
Chlorogenic acid (CGA) is an ester of caffeic acid and (−)-quinic acid, an intermediate in lignin biosynthesis. [1] The term "chlorogenic acids" refers to a family of related polyphenolic esters, including hydroxycinnamic acids (caffeic, ferulic, and p-coumaric acids) and quinic acids. [2]Despite t