Method of measuring freshness of cereals and apparatus therefor
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United States of America Patent
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Issued Date -
Jul 28, 2005
app pub date -
Nov 4, 2004
filing date -
Apr 7, 2003
priority date (Note) -
Abandoned
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Abstract
Grains are put into a test tube containing a specific reagent solution and are stirred to produce a reactive solution and this solution is put into a cell. A light is irradiated to the cell to detect an absorbance at a wavelength where the absorbance reaches a peak and an absorbance in a wavelength region in which the absorbance hardly varies. Then, freshness of the grains and beans is judged based on a difference between the two absorbances.
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