Detection of 4-aminocarminic acid in beverages and cake glaze from the German market: a food additive not approved in the EU

Autor: Eva Lassek, Werner Höbel, Julia Pfister, Richard Klinger, Franziska Gaßmann, Nicholas Schramek, Holger Knapp, Uwe Wollein, Andreas Miller
Rok vydání: 2016
Předmět:
Zdroj: Journal für Verbraucherschutz und Lebensmittelsicherheit. 11:127-135
ISSN: 1661-5867
1661-5751
DOI: 10.1007/s00003-015-1012-2
Popis: In the European Union, carminic acid and its ammonium, calcium, potassium or sodium salts and its aluminium lakes are approved as food additive E120. In beverages obtained from the German market 4-aminocarminic acid (“acid-stable carmine”) was detected by HPLC–PDA and LC–MS/MS. Isolation of the colorant from a liquid dye preparation used for the production of a beverage sample and subsequent NMR analysis confirmed the presence of 4-aminocarminic acid. Synthesis of 15N-4-aminocarminic acid clearly demonstrated that “acid-stable carmine” is not the ammonium salt of carminic acid, which is approved as food additive in the European Union. In fact, nitrogen in “acid-stable carmine” is covalently bound. The molecular structure of carminic acid is chemically modified and 4-aminocarminic acid does not comply with the specifications laid down for E120 in Commission Regulation (EU) No 231/2012. 4-Aminocarminic acid was also detected in the red-colored glaze of a raspberry cake and in the liquid dye preparation used for coloring this glaze.
Databáze: OpenAIRE