Title of Invention

ASTAXANTHIN DERIVATIVE AND A PROCESS FOR PRODUCING THE SAME

Abstract Astaxanthin derivatives of the general formula (I) wherein R is in each case group -NH-CH(R<SUP>1</SUP>)-COOR<SUP>2</SUP>, -OR<SUP>3</SUP> or -(Y)<SUB>n</SUB>-Z and R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3</SUP>, Y, Z and n are significances given in detail in the description, are novel compounds with improved stability during extrusion at the elevated temperatures as required in feed manufacture and during the storage of the manufactured feed and which accordingly are useful as pigmenting carotinoids for feed for aquatic animals. The derivatives are produced by reacting astaxanthin with the pertinent acid RCOOH as such or as its acid chloride RCOC1 or acid anhydride (RCO)2O, or, in the cases where R signifies a group -NH-CH(R1)-COOR2, with the appropriate N-carbonyl-amino acid ester of the formula OCNCH(R1)COOR2. The invention also concerns a formulation containing such an astaxanthin derivative as the pigmenting carotenoid for use in a feed for aquatic animals, a process for producing such a formulation by dissolving the astaxanthin derivative in a plant or vegetable oil or fat, or in an organic solvent, or in a mixture of both a plant or vegetable oil or fat and an organic solvent, emulsifying the solution with an aqueous solution of a protective colloid, at least partially removing the solvent and water to afford a concentrated emulsion, and spray-drying the concentrated emulsion to finally produce a formulation suitable for incorporation in a feed for aquatic animals, and a feed for aquatic animals containing such a pigmenting carotenoid.
Full Text

Documents:

1714-CHENP-2004 AMANDED CLAIMS 09-12-2009.pdf

1714-CHENP-2004 AMANDED PAGE OF SPECIFICATION 09-12-2009.pdf

1714-CHENP-2004 CORRESPONDENCE OTHERS 18-12-2009.pdf

1714-CHENP-2004 CORRESPONDENCE-OTHERS 09-12-2009.pdf


Patent Number 240650
Indian Patent Application Number 1714/CHENP/2004
PG Journal Number 22/2010
Publication Date 28-May-2010
Grant Date 21-May-2010
Date of Filing 03-Aug-2004
Name of Patentee DSM IP ASSETS B.V.
Applicant Address HET OVERLOON 1, 6411 TE HEERLEN,
Inventors:
# Inventor's Name Inventor's Address
1 GLOOR, ARNOLD DELSBERGERALLEE 52, CH-4053 BASEL
2 SIMON, WERNER, FUERFELDERSTRASSE 43, CH-4125 RIEHEN
PCT International Classification Number C07C403/24
PCT International Application Number PCT/EP03/00873
PCT International Filing date 2003-01-29
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 02002728.0 2002-02-06 EUROPEAN UNION