DYE COMPOUND, PROCESS FOR PRODUCING SAME, AND COLORING AGENT

WIPO Patent Application WO/2010/035589

A1

Disclosed is a novel plant-derived dye compound. The dye compound is represented by formula (II) [wherein R1 to R3 independently represent a hydroxyl group or an alkoxy group having 1 to 4 carbon atoms; and R4 and R5 independently represent a hydrogen atom, an acyl group having 1 to 4 carbon atoms, or an alkyl group having 1 to 4 carbon atoms].  The compound is a yellow dye produced by the extraction from a rice endosperm or the like of a rice variety “Hatsuyamabuki”.

JP2620277	INDUSTRIAL APPLICABILITY: A carotenoid preparation that can be dispersed in powdered water and a method for producing the same.
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NAKANO HIROSHI (JP)
SAKAI MAKOTO (JP)
KAJI RYOTA (JP)
YOSHIDA MITSURU (JP)
KOSEMURA SEIJI (JP)
SUZUKI TOSHISADA (JP)
HIROSE KATSUTOSHI (JP)

PCT/JP2009/064353

April 01, 2010

August 14, 2009

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INC ADMIN AGENCY NARO (JP)
KNC LAB CO LTD (JP)
NAKANO HIROSHI (JP)
SAKAI MAKOTO (JP)
KAJI RYOTA (JP)
YOSHIDA MITSURU (JP)
KOSEMURA SEIJI (JP)
SUZUKI TOSHISADA (JP)
HIROSE KATSUTOSHI (JP)

C09B61/00; C07D471/14

JPH05339884A	1993-12-21
JP2004131633A	2004-04-30
JPH10306224A	1998-11-17
JP2008245585A	2008-10-16

HIROSHI NAKANO, ET AL.: "Orytamutaic acid A, a novel yellow pigment from an Oryza sativa mutant with yellow endosperm", TETRAHEDRON LETTERS, vol. 50, no. 17, 29 April 2009 (2009-04-29), pages 2003 - 2005, XP025972761
"EiyogakulShokuhingaku Kyoiku Kenkyukai", DOBUNSHOIN, pages: 107 - 121

HIRAKI Yusuke et al. (JP)
Yusuke Hiraki (JP)

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