Incidence of Patulin in Apple Juices Marketed in Turkey
Abstract:The purpose of this study was to investigate the patulin contamination of apple juices consumed by the Turkish population. Patulin was detected using high-performance liquid chromatography (HPLC) with a UV detector at 280 nm, and the identification of patulin was further confirmed by thin-layer chromatography (TLC). Using HPLC, the recoveries were 79.9 ± 6.7% and 83.7 ± 4.6%, and the coefficients of variation were 8.4 and 5.5% for apple juices spiked with the known amounts of patulin (60 and 120μg/liter, respectively). The minimum patulin level detected was 5 ng in a standard solution and 5 μg/liter in apple juices. The TLC method was used only to confirm patulin levels higher than 20 μg/liter (100 ng/spot) in apple juices. The total number of samples was 45. Patulin was present in detectable levels in 60% of apple juices at concentrations ranging from 19.1 to 732.8 μg/liter. Forty-four percent of the apple juice samples had patulin contamination levels higher than 50 μg/liter, which is the allowable upper limit in Turkey.
Document Type: Research Article
Affiliations: Marmara University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, 81010 Haydarpaşa, Istanbul, Turkey
Publication date: November 1, 2001
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