Journal
JOURNAL OF THE FOOD HYGIENIC SOCIETY OF JAPAN
Volume 46, Issue 5, Pages 224-227Publisher
FOOD HYGIENE & SAFETY
DOI: 10.3358/shokueishi.46.224
Keywords
apple juice; patulin; official method; HPLC; inter-laboratory study; validation
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To validate a modified version of AOAC official method of analysis 995.10 as an official standard in Japan for determination of patulin in apple juice, an inter-laboratory study was performed in I I laboratories using a non-contaminated sample, 2 naturally contaminated samples and 2 spiked samples of apple juice. For naturally contaminated apple juices, the relative standard deviations for repeatability and reproducibility were 3.2, 7.1% and 10.0, 21.7%, respectively. HORRAT values were 0.4, 0.9. The average recovery of patulin from spiked sample was 83.7%. The limit of quantification was calculated as 10 mu g/kg. From these results, the method was thought to be suitable as an official standard for determination of patulin in apple juice in Japan.
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