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    • 32. 发明专利
    • PRODUCTION OF CURCUMINS
    • JP2000236843A
    • 2000-09-05
    • JP4391699
    • 1999-02-22
    • LION CORP
    • SOMEYA KEITAISOBE KENJIFURUE MASAHIKO
    • A23L27/10A61K36/18A23L1/221A61K35/78
    • PROBLEM TO BE SOLVED: To suppress the deterioration of curcumin, reduce the amount of an extracting solvent and produce high-purity curcumins useful for medicines, foods, colorants, or the like, by dispersing a curcumin-containing extract solution in a solvent having a polarity different from that of the extracting solvent and then fractionating the curcumin. SOLUTION: For example, Curcuma longa L. is pulverized to 250-500 μm size to thereby provide a curcumin-containing extract solution according to a solid-liquid extracting method or a Soxhlet method, or the like, using an extracting solvent such as acetone. The resultant extract solution is then dispersed in a solvent having a polarity different from that of the extracting solvent and having high safety such as hydrous ethanol, hydrous denatured ethanol or water and the curcumin is subsequently fractionated to afford curcumins. For example, a deposition fractionating method by regulation of hydrogen ions of a solution, temperature regulation or polarity regulation is used as the method for fractionating the curcumins.