Process for the preparation of an xanthophyll
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United States of America Patent
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May 9, 2006
Grant Date -
Apr 22, 2004
app pub date -
Apr 18, 2002
filing date -
Apr 24, 2001
priority date (Note) -
Expired
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Abstract
The present invention relates to a process for the preparation of an xanthophyll, and in particular to a process for the preparation of an xanthophyll through the oxidation of a carotenoid in the presence of hydrogen peroxide and an iodine-containing compound. In particular, the process of the invention applies to the oxidation of beta-carotene to produce canthaxanthin, and to the oxidation of lutein or zeaxanthin to produce astaxanthin.
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