IMPROVEMENT OF AROMA AND FLAVOR OF LEAF TOBACCO RAW MATERIAL AND LEAF TOBACCO RAW MATERIAL IMPROVED IN AROMA AND FLAVOR

摘要

PURPOSE: To provide a method for more simply and economically improving an aroma and a flavor of a leaf tobacco raw material and obtain the leaf tobacco raw material improved in the aroma and flavor. ;CONSTITUTION: This method for improving an aroma and a flavor of a leaf tobacco raw material is to seal two kinds of leaf tobacco raw materials 20 and 21 in a treating tank 19, then close valves 23 and 26, subsequently inject carbon dioxide from a tank 11 through heat exchangers 15 and 17 into the treating tank 19 with a pump 16, keep the carbon dioxide at 0-50°C temperature, feed the carbon dioxide to the treating tank 19 until the interior thereof is pressurized to 35-100kg/cm², maintain the interior of the treating tank 19 in a state of an interior thereof increased to a prescribed pressure for 10-60min, thereby leach a flavor ingredient contained in cells in the interior of the leaf tobacco raw materials 20 and 21 into the carbon dioxide, then close a valve 18, open the valve 23, slowly reduce the pressure in the interior of the treating tank 19 to atmospheric one, thereby condense the flavor ingredient dissolved in the carbon dioxide onto the surface of the leaf tobacco raw materials 20 and 21.;COPYRIGHT: (C)1996,JPO