A method to produce an enriched extract having Chlorogenic acids content ranging between 70-80 weight %, from dried coffee beans, wherein the method comprises the steps of extraction and purification as below: powdering the dried coffee beans and A. i. adding water and stirring at a temperature between 45°-55° C for 4 hours; ii. adding polar solvent ethyl acetate, in a quantity four times the quantity of water added in step A. i. and stirring at 50 0 -55 0 C and extracting the water and solvent until extraction is completed; iii. separating and drying the solvent layer to obtain a dry mass which is then purified by dissolving in water and washing with a chlorinated solvent selected from chloroform and methylene chloride to remove caffeine; and iv. evaporating the water to obtain the dry powder extract; or B. i. adding a water-alcohol mixture in a quantity four times the quantity of the powdered dried coffee beans and stirring at a temperature between 45 0 -55 0 C for 4 hours; ii. extracting the water-alcohol mixture until the extraction is completed; iii. concentrating the water-alcohol mixture to reduce its volume; iv. removing fats by washing with hexane; v. removing caffeine by washing with a chlorinated solvent selected from chloroform and methylene chloride; vi. extracting by using a polar solvent selected from n-butyl alcohol, acetone, and ethyl acetate; and vii. evaporating the solvent to obtain the dry powder extract; wherein the content of Chlorogenic acids in the extract ranges between 70-80 weight %. A. i. adding water and stirring at a temperature between 45°-55° C for 4 hours; ii. adding polar solvent ethyl acetate, in a quantity four times the quantity of water added in step A. i. and stirring at 50 0 -55 0 C and extracting the water and solvent until extraction is completed; iii. separating and drying the solvent layer to obtain a dry mass which is then purified by dissolving in water and washing with a chlorinated solvent selected from chloroform and methylene chloride to remove caffeine; and iv. evaporating the water to obtain the dry powder extract; or i. adding water and stirring at a temperature between 45°-55° C for 4 hours; ii. adding polar solvent ethyl acetate, in a quantity four times the quantity of water added in step A. i. and stirring at 50 0 -55 0 C and extracting the water and solvent until extraction is completed; iii. separating and drying the solvent layer to obtain a dry mass which is then purified by dissolving in water and washing with a chlorinated solvent selected from chloroform and methylene chloride to remove caffeine; and iv. evaporating the water to obtain the dry powder extract; or B. i. adding a water-alcohol mixture in a quantity four times the quantity of the powdered dried coffee beans and stirring at a temperature between 45 0 -55 0 C for 4 hours; ii. extracting the water-alcohol mixture until the extraction is completed; iii. concentrating the water-alcohol mixture to reduce its volume; iv. removing fats by washing with hexane; v. removing caffeine by washing with a chlorinated solvent selected from chloroform and methylene chloride; vi. extracting by using a polar solvent selected from n-butyl alcohol, acetone, and ethyl acetate; and vii. evaporating the solvent to obtain the dry powder extract; i. adding a water-alcohol mixture in a quantity four times the quantity of the powdered dried coffee beans and stirring at a temperature between 45 0 -55 0 C for 4 hours; ii. extracting the water-alcohol mixture until the extraction is completed; iii. concentrating the water-alcohol mixture to reduce its volume; iv. removing fats by washing with hexane; v. removing caffeine by washing with a chlorinated solvent selected from chloroform and methylene chloride; vi. extracting by using a polar solvent selected from n-butyl alcohol, acetone, and ethyl acetate; and vii. evaporating the solvent to obtain the dry powder extract;