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Title:
RED DYE COMPOSITION DERIVED FROM IRIDOID COMPOUND, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2017/217527
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a technique which relates to the production of a red dye composition derived from an iridoid compound, is desirable with respect to the safety and production cost of the produced dye composition, and enables the production of an acid-resistant red dye composition derived from an iridoid compound. The present invention relates to a method for producing a red dye composition derived from an iridoid compound, said method being characterized by comprising a step of performing red color development involving the interaction of an iridoid aglycone having a carboxyl group at position-4 in the iridoid backbone thereof with an compound containing an amino group in a solution containing ascorbic acid, an analogous compound thereof or at least two compounds selected from of ascorbic acid and the analogous compound in an amount of 5 molar equivalents or more relative to the total molar equivalent of the iridoid compound to produce a red dye compound having acid resistance.

Inventors:
IZUMIDA KEIKO (JP)
HAMASAKI KOJI (JP)
YOKOYAMA TAKAMASA (JP)
Application Number:
PCT/JP2017/022274
Publication Date:
December 21, 2017
Filing Date:
June 16, 2017
Export Citation:
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Assignee:
SAN-EI GEN F F I INC (JP)
International Classes:
C09B61/00; A23K10/30; A23K20/121; A23K20/179; A23L5/41; A61K8/49; A61K8/97; A61Q1/02
Domestic Patent References:
WO2011132334A12011-10-27
Foreign References:
JPH03277663A1991-12-09
JPH0559296A1993-03-09
JPS5486668A1979-07-10
JP2011217728A2011-11-04
JP2012116925A2012-06-21
Other References:
See also references of EP 3473680A4
Attorney, Agent or Firm:
TANABE Yoichi (JP)
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