TY - JOUR
T1 - Ultra-high-performance liquid chromatography/tandem high-resolution mass spectrometry analysis of sixteen red beverages containing carminic acid
T2 - Identification of degradation products by using principal component analysis/discriminant analysis
AU - Gosetti, Fabio
AU - Chiuminatto, Ugo
AU - Mazzucco, Eleonora
AU - Mastroianni, Rita
AU - Marengo, Emilio
PY - 2015/1/15
Y1 - 2015/1/15
N2 - The study investigates the sunlight photodegradation process of carminic acid, a natural red colourant used in beverages. For this purpose, both carminic acid aqueous standard solutions and sixteen different commercial beverages, ten containing carminic acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of carminic acid dye to be identified for each beverage.
AB - The study investigates the sunlight photodegradation process of carminic acid, a natural red colourant used in beverages. For this purpose, both carminic acid aqueous standard solutions and sixteen different commercial beverages, ten containing carminic acid and six containing E120 dye, were subjected to photoirradiation. The results show different patterns of degradation, not only between the standard solutions and the beverages, but also from beverage to beverage. Due to the different beverage recipes, unpredictable reactions take place between the dye and the other ingredients. To identify the dye degradation products in a very complex scenario, a methodology was used, based on the combined use of principal component analysis with discriminant analysis and ultra-high-performance liquid chromatography coupled with tandem high resolution mass spectrometry. The methodology is unaffected by beverage composition and allows the degradation products of carminic acid dye to be identified for each beverage.
KW - Beverage
KW - Carminic acid
KW - Degradation products
KW - Discriminant analysis
KW - Non-target screening
KW - Principal component analysis
UR - http://www.scopus.com/inward/record.url?scp=84904989446&partnerID=8YFLogxK
U2 - 10.1016/j.foodchem.2014.07.026
DO - 10.1016/j.foodchem.2014.07.026
M3 - Article
SN - 0308-8146
VL - 167
SP - 454
EP - 462
JO - Food Chemistry
JF - Food Chemistry
ER -