PURPOSE: To efficiently extract a pigment, a sharp taste ingredient, etc., whose separation have heretofore been difficult, by passing a spice extract-dissolved supercritical fluid through a filler layer and subsequently releasing and recovering the adsorbed ingredients with a supercritical fluid having a larger ingredient-dissolving power than that of the first supercritical fluid.
CONSTITUTION: A method for producing a spice extract comprises charging a spice such as oleoresin or its extract extracted by a solvent extraction method, etc., in an extraction tank 19, closing the extraction tank 19, heating the closed extraction tank to a prescribed temperature, compressing carbon dioxide with a compressor 13, converting the compressed carbon dioxide into a supercritical fluid through a heat exchanger 15, charging the supercritical fluid into the extraction tank 19, passing the first critical fluid through a filler layer 21 filled with a filler for the adsorption of a part ingredient of the extract on the filler, passing the second supercritical fluid through the filler layer 21 to release the extraction ingredient adsorbed on the filler and dissolve the released ingredient in the second supercritical fluid, and subsequently separating the extract from the carbon dioxide in a separation tank 27, thus efficiently recovering the extracted ingredients such as a pigment, a sharp taste ingredient, etc. The second supercritical fluid has a larger dissolving power for the adsorbed ingredient than that of the first supercritical fluid.
KANAMORI TAKESHI