Benzaldehyde in cherry flavour as a precursor of benzene formation in beverages

Autor: Christine Loch, Thomas Kuballa, Rolf Godelmann, Ingrid Ruge, Dirk W. Lachenmeier, Sandra Schumacher, Helmut Reusch, Tabea Pflaum
Rok vydání: 2016
Předmět:
Zdroj: Food Chemistry. 206:74-77
ISSN: 0308-8146
DOI: 10.1016/j.foodchem.2016.03.034
Popis: During sampling and analysis of alcohol-free beverages for food control purposes, a comparably high contamination of benzene (up to 4.6μg/L) has been detected in cherry-flavoured products, even when they were not preserved using benzoic acid (which is a known precursor of benzene formation). There has been some speculation in the literature that formation may occur from benzaldehyde, which is contained in natural and artificial cherry flavours. In this study, model experiments were able to confirm that benzaldehyde does indeed degrade to benzene under heating conditions, and especially in the presence of ascorbic acid. Analysis of a large collective of authentic beverages from the market (n=170) further confirmed that benzene content is significantly correlated to the presence of benzaldehyde (r=0.61, p
Databáze: OpenAIRE