- Tytuł:
-
Zastosowanie spektroskopii oscylacyjnej w detekcji barwników azowych w opakowaniach do żywności
Application of vibrational spectroskopy in the detection of azo dyes in food contact packaging materials - Autorzy:
-
Kucharska, Edyta
Michalski, Jacek
Sąsiadek, Wojciech
Dymińska, Lucyna
Hołubniak, Paulina
Hanuza, Jerzy - Powiązania:
- https://bibliotekanauki.pl/articles/27310037.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polskie Towarzystwo Chemiczne
- Tematy:
-
azo-dipirydyny
fenylo-azopiridyny
struktura krystaliczna
widma IR i Ramana
drgania normalne wiązań azowych
barwniki azowe w opakowaniach żywności
azo-dipyridines and phenyl-azopyridines
crystal structures
IR and Raman spectra
vibrations of azo bridge
azo dyes in food packing - Opis:
- This work is a continuation of our research on spectroscopic and structural properties and applications of a number of azo-dipyridine and phenyl-azopyridine derivatives. In the previous works, the results of DFT quantum calculations were used to discuss infrared and Raman spectra. The presented study generalizes these results using the literature data on the structure of aromatic azo compounds. Analysis of the spectra and detailed assignment of the observed bands to the specific oscillating modes enables their application to identification of azo dyes widely used in the food industry. The bioactivity of azo dyes means that the safety of their use requires the search for new methods of their detection in food. The paper shows that vibrational spectroscopy is an effective diagnostic method for identifying not only the material from which the plastic foil is made, but also the dye used for its dyeing. In this work, the method was applied to colour plastic foils used as pasta packaging. It has been shown that this foil is made of polypropylene, and azo dyes, such as orange yellow (orange dye), tartrazine (yellow dye), allura red (red dye), brilliant blue (blue dye) and a mixture of yellow and blue dyes (green dye) were used for its dyeing.
- Źródło:
-
Wiadomości Chemiczne; 2023, 77, 7-8; 687--718
0043-5104
2300-0295 - Pojawia się w:
- Wiadomości Chemiczne
- Dostawca treści:
- Biblioteka Nauki
Artykuł