Information Technology Reference
In-Depth Information
4.2 Recognition of food information patterns for the human biosafety
The developed intelligent system “ISSE” can be used for the recognition of information
patterns of foods to maintain and control the human health and biosafety. Their physical
and biochemical properties determine coefficients of the optical reflection and light
scattering particularly, the quality and the biosecurity of produced food substances. There
are optical reflection coefficients for light flour and dark one in the table 7. The flour is
lighter, the one is more qualitative, so the reflection from lighter flour in the visible spectral
range is higher for high quality one. The presented optical information patterns of different
berries and foodstuffs (bread, butter, curds, flour, etc) in the figures 27, 28 can be applied as
reference information for the detection of harmful or dangerous toxic components and the
content of heavy metals which are accumulated in soil especially because of the nonuniform
application of mineral fertilizers, microbial contamination and kept in harvested crops and
produced foods [1, 3-5].
Reflection coefficient
light flour
Wavelength
dark flour
405 (violet)
0,18
0,16-0,17
460 nm (blue)
0,84
0,72-0,76
505, 530 nm (green)
0,92
0,81-0,83
570 nm (yellow)
0,78-0,82
0,7-0,6
620 nm (orange)
0,87-0,82
0,81
660 nm (red)
0,87-0,93
0,85
405-650 (white colour)
0,77-0,81
0,7
760-2400 nm
(infrared light)
0,89
0,86-0,87
Table 7. Comparison of reflection coefficients for different kinds of flour
Fig. 27. Noncontact LED e-eye for measuring information patterns of berries
