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Method for measuring the amount of an organic substance in a food product with infrared electromagnetic radiation

  • US 7,288,768 B2
  • Filed: 07/10/2003
  • Issued: 10/30/2007
  • Est. Priority Date: 07/18/2002
  • Status: Expired due to Fees
First Claim
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1. A method of measuring an amount of an organic substance contained within a food product, said organic substance having an infrared absorption spectrum which includes a set (n) of infrared absorption bands, the method comprising:

  • (a) passing infrared electromagnetic radiation through said food product containing said organic substance;

    (b) detecting the intensity of infrared electromagnetic radiation passing through said food product containing said organic substance in ranges of wavelengths corresponding to each of a subset of said (n) infrared absorption bands to provide electrical signals corresponding thereto;

    (c) processing said electrical signals with a quantification algorithm so as to provide a measurement of said amount of said organic substance contained within said food product, wherein said quantification algorithm includes dividing a first wavelength band integrated absorbance value by a reference wavelength band integrated absorbance value in which said organic substance does not substantially absorb said infrared electromagnetic radiation; and

    (d) outputting said measurement.

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