Totally, 16 phenolics including phenolic acids, flavonoids, and catechins were. Phenolic compounds are the most important group of bioactive constituents of the medicinal plants and human diet. These account for the nearly 26% of the material not accounted for by polysaccharides and proteins present in coffee melanodins. Identification and characterisation of phenolic compounds. Pdf classification of phenolic compounds by chemical structural. The chemical structures of this class of compounds are based on. Higher plants synthesize several thousand known different phenolic compounds. Classification of phenolic compounds by chemical structural indicators and its relation to antioxidant properties of posidonia oceanica l. Since the ancient days of research polyphenolic compounds have found a variety of use in medicinal chemistry and presently have found their applications in material research. A critical study on chemistry and distribution of phenolic. Hydroxycinnamic acids are a major class within the phenolic compounds 10, 11. The objectives of this study were to identify and characterize the phenolic contents of 11 different black walnut cultivars and compare the levels of these phenolics between black walnuts and english walnut juglans regia l. Phenolics in human health international journal of chemical.
Phenolic compounds in food acs publications american. Identification and characterization of phenolic compounds. Flavonoids and phenolics acids are the most important groups of secondary metabolites and bioactive compounds in plants and good sources of natural. The antioxidant capacity of phenolic compounds is also attributed to their ability to chelate metal ions involved in the production of free radicals. Nature of phenolic compounds in coffee melanoidins. Short summary of iupac nomenclature of organic compounds. Flavonoids flavonoids are the most abundant polyphenols in human diets, accounting for over half of the eight thousand naturally occurring phenolic compounds found mainly in blackberries, black currant, blueberries, grape, strawberries, cherries. Phenolic compounds in plants and agriindustrial by.