... plants, including the coffee bean, . Structurally, chlorogenic acid is the ester of caffeic acid with the 3-hydroxyl group of quinic ... many other fields like food, feed additives and cosmeticsEffectivityd) An ester of caffeic acid and quinic acid, a major phenolic compound ... the prevention of disease caused by free radicalsChlorogenic acid, an ester of caffeic acid and quinic acid, is a major phenolic ...