| 摘要 |
PROBLEM TO BE SOLVED: To provide both a method for extracting astaxanthin from a shell of a lobster or a shrimp or a crab by which the volatility of an alcohol is reduced and the astaxanthin can safely, surely and readily be separated from the shell of the lobster or shrimp or crab without emitting a malodor and without causing a danger such as ignition and explosion and an apparatus therefor. SOLUTION: A shell of a lobster or a shrimp or a crab is dipped in hydrochloric acid to remove calcium in the shell thereof and the resultant shell of the lobster or shrimp or crab is then dipped in a sodium hydroxide solution to carry out the neutralizing treatment. Proteins in the shell thereof are subsequently removed and the prepared shell is then dipped in a solvent comprising 80% alcohol for brewing and 20% water at 78±5 deg.C temperature to separate and extract astaxanthin from the solvent.
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