Optical inspection of food products

Details Optical inspection of food products Optical inspection of food products

1988-08-12

1989-09-12

Fields, Carolyn E.

Radiant energy

Luminophor irradiation

With ultraviolet source

2504591, 356318, 209578, 209579, G01N 2164

Patent

active

048662836

ABSTRACT:
An optical inspection system for using laser-induced luminescence to detect the quality of organic materials, such as peanuts. The inspection system comprises an excitation means for illuminating a specimen to cause it to produce fluorescent radiation. The spectral representation of the fluorescence produced by the specimen is compared to a reference spectrum to obtain an indication of the physical characteristics of the specimen. In a preferred embodiment, the system identifies and removes peanuts contaminated with aflatoxin from a stream of peanuts by determining fluorescence at a predetermined wavelength.

REFERENCES:
patent: 4203522 (1980-05-01), Fraenkel et al.
patent: 4421772 (1983-12-01), Munck et al.
patent: 4535248 (1985-08-01), Schade et al.

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