Title:
METHOD FOR EVALUATION OF MILK, AND KIT FOR THE AVALUATION
Document Type and Number:
Japanese Patent JP3589313
Kind Code:
B2
Abstract:
PURPOSE: To accurately determine a thermal history of milk or the number of elapsed days after production thereof.
CONSTITUTION: A coloring liquid containing sodium 3'-{1-[phenyl amino- carbonyl]-3, 4-tetrazolium-bis(4-methoxy-6-nitro)benzenesulfonate is mixed with milk to be reacted then a coloring degree is measured. 2-methyl-1,4- naphthoquinone are added to the coloring liquid as mediator. The measuring the the coloring degree is executed measuring variations of an absorbance at a wavelength of 492nm, or measuring variations of a color tone before and after coloring reaction by utilizing a color-difference meter as variations of a value (a). The evaluation kit of milk is constituted of a coloring reagent containing sodium 3'-{1-[phenylamino-carbonyl]-3,4-tetrazolium}-bis(4-methoxy-6- nitro)benzenesolfonate and 2-methyl-1,4-naphthoquinone, a micro plate, and a micro pipette.
Inventors:
Hiroyuki Ukeda
Hideaki Kamimon
Hideaki Kamimon
Application Number:
JP29448894A
Publication Date:
November 17, 2004
Filing Date:
November 29, 1994
Export Citation:
Assignee:
Meiji Dairy Co., Ltd.
International Classes:
G01N21/77; A23C7/00; G01N33/04; (IPC1-7): G01N33/04; G01N21/77
Domestic Patent References:
| JP4340466A |
Attorney, Agent or Firm:
Akira Koike
Eiichi Tamura
Seiji Iga
Eiichi Tamura
Seiji Iga
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