A near-infrared instrument based on the Frequency Domain Photon Migration (FDPM) concept has been applied to the analysis of cheese. This instrument is unique because it can quantitatively determine the wavelength dependence of material absorption and scattering in a single measurement. Quantitative measurements of absorption and scattering have been performed on milk samples using a high bandwidth, multi-wavelength, diode-laser-based FDPM instrument. Scattering and absorption measurements are correlated to concentrations of fat, protein, lactose and water. Measurements on cheese have been made which will provide essential design information on modulation frequencies and optical wavelengths (diode lasers) for developing a portable instrument specifically dedicated to the analysis of cheese products and processing.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR001192-23
Application #
6586477
Study Section
Project Start
2002-04-01
Project End
2003-03-31
Budget Start
Budget End
Support Year
23
Fiscal Year
2002
Total Cost
Indirect Cost
Name
University of California Irvine
Department
Type
DUNS #
161202122
City
Irvine
State
CA
Country
United States
Zip Code
92697
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