Title:
GARDENIA BLUE COLORANT WITH IMPROVED COLOR TONE AND METHOD OF PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2006/082922
Kind Code:
A1
Abstract:
A gardenia blue colorant having a bright blue color or a greenish blue color with a suppressed reddish to purplish tone. This gardenia blue colorant can be produced by a method comprising treating iridoid glycosides with β-glucosidase in the presence of a protein digestion product to thereby prepare a gardenia blue colorant wherein use is made of, as the protein digestion product, a casein-origin protein digestion product, in particular, a casein-digestion product prepared by conducting the digestion with the use of a proline-specific endo-protease to the extent of giving 2 to 10 amino acid residues.
Inventors:
NAKASHIMA KOICHI (JP)
AOKI HIROMITSU (JP)
SHINBO KUNIYUKI (JP)
AOKI HIROMITSU (JP)
SHINBO KUNIYUKI (JP)
Application Number:
PCT/JP2006/301861
Publication Date:
August 10, 2006
Filing Date:
February 03, 2006
Export Citation:
Assignee:
SAN EI GEN FFI INC (JP)
NAKASHIMA KOICHI (JP)
AOKI HIROMITSU (JP)
SHINBO KUNIYUKI (JP)
NAKASHIMA KOICHI (JP)
AOKI HIROMITSU (JP)
SHINBO KUNIYUKI (JP)
International Classes:
C09B61/00
Domestic Patent References:
| WO2003029358A1 | 2003-04-10 |
Foreign References:
| JPH07111896A | 1995-05-02 | |||
| JPS5253934A | 1977-04-30 |
Attorney, Agent or Firm:
Saegusa, Eiji (1-7-1 Doshomachi, Chuo-k, Osaka-shi Osaka 45, JP)
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