Title:
PURIFICATION OF XANTHOPHYLL COMPOUND
Document Type and Number:
Japanese Patent JP3398248
Kind Code:
B2
Abstract:
PURPOSE: To efficiently and readily purify a xanthophyll compound useful for coloring of foods, etc., also from natural product by extracting a xanthophyll compound-containing water-soluble organic solvent solution with a nonpolar solvent and water, and concentrating a nonpolar solvent phase or extracting by adding water or a nonpolar solvent.
CONSTITUTION: (B) A nonpolar solvent such as hexane, heptane or octane in an amount of 0.2-10 pts.vol. and (C) water in an amount of 0.2-10 pts.vol. are added to (A) 1 pt.vol. water-soluble organic solvent such as acetone, THF or dioxane containing a xanthophyll compound, and the component A is extracted with the components B and C, and the resultant nonpolar solvent phase (NP) is concentrated to 1.5-1000 times or the component C in an amount of 0.1-30 times by vol. based on NP is added to NP and the component A is extracted by liquid/liquid extraction, or the component B in an amount of 0.1-30 times by vol. based on NP is added to NP and xanthophyll compound is thereby deposited to purify the component A into the objective compound.
Inventors:
Motomitsu Kitaoka
Akira Tsubokura
Takashi Kiyota
Akira Tsubokura
Takashi Kiyota
Application Number:
JP5756695A
Publication Date:
April 21, 2003
Filing Date:
March 16, 1995
Export Citation:
Assignee:
Shin Nippon Oil Co., Ltd.
International Classes:
C07B63/00; C07C403/00; C09B61/00; C09B67/54; (IPC1-7): C09B61/00; A23K1/16; A23K1/18
Domestic Patent References:
| JP5328979A | ||||
| JP5328978A | ||||
| JP7265088A | ||||
| JP7224029A | ||||
| JP779796A | ||||
| JP892205A | ||||
| JP7242621A |
Attorney, Agent or Firm:
Hajime Sakai