Method for producing esterified astaxanthin from esterified...

Details Method for producing esterified astaxanthin from esterified... Method for producing esterified astaxanthin from esterified...

2007-11-06

2007-11-06

Oh, Taylor Victor (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

Reexamination Certificate

active

10685194

ABSTRACT:
A method is described for preparing astaxanthin esters from zeaxanthin by acylation of zeaxanthin with an acylating agent followed by contacting the esterified zeaxanthin with an oxidizing agent to produce esterified astaxanthin. The astaxanthin esters are more stable and show a better bioavailability than free astaxanthin when used in salmonid pigmentation.

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Von FRank Kleazie et al , Helvetica chimica Act., vol. 61, Fasc 7, 1978, p. 2609-2615.
International Search Report mailed May 17, 2004, in a related, pending foreign application.

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