FAT-SOLUBLE OIL COMPRISING FUCOXANTHIN, PROCESS FOR PRODUCTION OF THE OIL, AND PROCESS FOR PRODUCTION OF FUCOXANTHIN

摘要

[PROBLEMS] To provide a fat-soluble oil comprising fucoxanthin which is extracted with a high yield in an economically advantageous manner, a process for production of the oil, and a process for production of fucoxanthin. [MEANS FOR SOLVING PROBLEMS] A fat-soluble oil almost certainly comprising fucoxanthin can be extracted from a brown alga by performing a first step wherein the brown alga is heat-treated and a second step wherein a fat-soluble oil is extracted from the brown alga heat-treated in the first step with an organic solvent. Fucoxanthin can be purified from a fat-soluble oil readily by developing the fat-soluble oil by silica gel column chromatography, wherein the fat-soluble oil is produced from the heat-treated brown alga and has chlorophyll partially decomposed by immersing the brown alga in hot water.