REFINED LICORICE PRODUCING METHOD

摘要

PURPOSE: A method for producing refined licorice by using porous adsorptive resin is provided to be used for selectively removing protein ingredients causing from soy sauce or kinds of soybean paste to prevent settlings. CONSTITUTION: The method is characterized by the following steps of: (i) dissolving 1000g of licorice extract containing 8% of Glycyrrhizinic acid in 3500ml of water and settling the solution with 1N of sulfuric acid for 3hrs; (ii) separating supernatant from the deposits of Glycyrrhizinic acid and protein and leaving the deposits with 3000ml of water for 5hrs to removed water soluble salt and sugar from the deposit; (iii) neutralizing the deposit with 1N of ammonia to get 20% aqueous solution containing 25% of Glycyrrhizinic acid; (iv) letting the solution flow into a column filled with 520ml of porous adsorptive resin and collecting the passed solution to be concentrated and dried into licorice powder.