Method for recovery and separation of chitin, proteins and astaxanthin and esters thereof
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United States of America Patent
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May 11, 1993
Grant Date -
N/A
app pub date -
Jul 15, 1991
filing date -
Nov 18, 1988
priority date (Note) -
Expired
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Abstract
A method is provided for recovering astaxanthin, astaxanthin carotenoids, astaxanthin esters, chitin and proteins from crustacean tissues containing such. The method comprises an initial extraction of crustacean tissue with boiling lye to form an alkaline extract and an extracted residue. The alkaline extract, upon cooling, forms separate layers from which can be recovered component protein, astaxanthin, astaxanthin carotenoids and astaxanthin esters. The lye extracted residue of chitin-containing such crustacean tissue is readily processed to provide chitin.
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