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Title:
METHOD FOR MEASURING DEGREE OF INSOLUBILITY IN WATER OF POWDER CONTAINING FAT-SOLUBLE MATERIAL
Document Type and Number:
Japanese Patent JP2002350345
Kind Code:
A
Abstract:

To provide a method for repeatably and quantitatively evaluating degree of insolubility in water of powder containing retinoid and/or carotenoid and having protective colloid as a matrix by the simple operation.

Measurement of the degree of insolubility in water of the powder that fat-soluble materials are held in the protective colloid as the matrix is performed by (a) collecting solid contents from a mixture that the powder and water are mixed and obtaining filtrated liquid by using a filtrating process not to collect the fat-soluble materials extricated from the powder and (b) measuring an optical transmittance of the obtained filtrated liquid.


Inventors:
MORI TOSHIKI
MONOE HIROYUKI
Application Number:
JP2001160068A
Publication Date:
December 04, 2002
Filing Date:
May 29, 2001
Export Citation:
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Assignee:
KURARAY CO
International Classes:
G01N1/10; G01N1/28; G01N21/35; G01N21/59; (IPC1-7): G01N21/59; G01N1/10; G01N1/28; G01N21/35
Attorney, Agent or Firm:
Noboru Tajime (1 person outside)