393
Volume 5, Issue 10: Special Issue
(EJAR)
ISSN: 2181-2020
MPHAPP
THE 6TH INTERNATIONAL SCIENTIFIC AND PRACTICAL
CONFERENCE “MODERN PHARMACEUTICS: ACTUAL
PROBLEMS AND PROSPECTS”
TASHKENT, OCTOBER 17, 2025
in-academy.uz
DETERMINATION OF OPTICAL PROPERTIES OF COLORANTS IN SOME
CONFECTIONERY PRODUCTS
Taniye O.U.
Tashken Pha maceu ical Ins i u e, Tashken ci y, Republic o Uzbekis an
E-mail: [email p o ec ed], Tel:+99899-121-27-55
h ps://doi.o g/10.5281/zenodo.17339536
Cu en ly, syn he ic dyes a e widely used in he p oduc ion o ood p oduc s, pha maceu icals
and be e ages. This, in u n, equi es cons an con ol o e he quan i y and quali y o hese dyes ha
can be added.[1,2]
In his a icle, selec ed blue, black, ed and yellow con ec ione y p oduc s we e aken o
analysis and i s he ligh e lec ion p ope ies and hen he op ical p ope ies o hei solu ions we e
analyzed using a spec opho ome e .[3,4]
The aim o he expe imen was a quali a i e and quan i a i e analysis o he dyes con ained in
selec ed colo ed con ec ione y p oduc s. The esul ing con ec ione y p oduc s consis ed o ed,
yellow, blue, and black dyes, as well as na u al bee oo dye. Each p oduc was d y-weighed on a
p ecision analy ical balance and g ound in o powde . The op ical p ope ies o he powde we e
p elimina ily analyzed using an X.Ri e.eye one p o ins umen . The esul s a e p esen ed in he able.
As can be seen om he esul ing able, we can see ha he highes ligh e lec ance coe icien
(R) belongs o he ed colo . A λ =700nm, R ed=0.6802, a λ =700nm, Rblue=0.35098, a λ=700nm,
Rblack=0.34273. I was ound ha he R alues o blue and black a e close o each o he .
λnm
R1 yellow
R2 ed
R3 blue
R4 black
350
0,05192
0,13828
0,16087
0,09114
400
0,04246
0,13468
0,14675
0,0834
450
0,0394
0,12166
0,15011
0,07763
500
0,091
0,06307
0,29578
0,04789
550
0,22338
0,06031
0,26511
0,04628
600
0,45159
0,35653
0,08535
0,07414
650
0,46126
0,6014
0,06472
0,05628
700
0,48562
0,6802
0,35098
0,34273
