EXTRACTION DEVICES AND METHOD FOR EXTRACT ANTHOCYANIN BY SUPERCRITICAL CARBON DIOXIDE

摘要

PURPOSE: A method for extracting anthocyanin is provided to control temperature and pressure conditions to maintain anthocyanin functionality and to be used for various industrial fields as food, pharmaceutical, and cosmetic materials. CONSTITUTION: A supercritical extraction method for extracting anthocyanin ingredients from black soybean powder comprises a step of extracting while stirring carbon dioxide of a supercritical state using water and alcohol under an acidic condition. The supercritical state is a temperature of 30-60 deg. C and a pressure of 80-300 bar. An apparatus for extracting anthocyanin comprises a cooler(120), a high pressure liquid pump(130), a reactor(180), a primary separation tank(200), and a secondary separation tank(230). The cooler changes a phase into a liquid phase by cooling carbon dioxide from CO_2 container(100). The high pressure liquid pump receives and pressurizes carbon dioxide. The reactor heats and stirs a reactant of the black soybean powder, water, ethanol, and organic acid in an inner receiving unit by mounting a magnetic driving device(170) for stirring and a heating device. The primary and secondary separation tanks separate carbon dioxide and the reactant by spraying the reactant to a low pressure container and has a filter(210).