Quantitative measurement of fat in dairy products

Details Quantitative measurement of fat in dairy products Quantitative measurement of fat in dairy products

1986-03-21

1987-05-05

Howell, Janice A.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250343, G01J 100

Patent

active

046635300

ABSTRACT:
An infrared transmission/absorption technique for the quantitative determination of fat in dairy products, particularly high-fat dairy products having fat concentrations between 15 and 60 w/o. A wave band characteristic of bending and scissoring of saturated carbon hydrogen bonds is employed, preferably a wave band at about 6.84 microns. It is further preferred to use the double wavelength, single cuvette system. Variations in accuracy caused by lipolysis and degree of homogenization are substantially reduced.

REFERENCES:
patent: 4076983 (1978-02-01), Hopkins et al.
patent: 4207469 (1980-06-01), Hopkins et al.
patent: 4247773 (1981-01-01), Neko et al.
patent: 4310763 (1982-01-01), Shields
patent: 4447725 (1984-05-01), Biggs et al.
Smith et al., "Fatty Acid Composition of the Phospholipids and Other Lipids in Milk," 1/22/62, pp. 581-588.
Goulden, "Infrared Spectroscopy of Dairy Products", 9/7/56, pp. 609-613.
Conley, "Infrared Spectroscopy", 1/4/74, Second Edition, pp. 92-93.

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