Journal
FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE
Volume 4, Issue 1, Pages 67-70Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/19393210.2010.542252
Keywords
rice; mycotoxins; ochratoxin A
Funding
- Testa Quality Control Laboratory (TQCL)
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This paper records the occurrence and levels of ochratoxin A (OTA) in rice using a HPLC technique preceded by an immunoaffinity clean-up step. The method was based on the extraction of finely ground rice sample with an acetonitrile/water (60 : 40, v/v) solution. Recovery was 98.9% while the limit of detection (LOD) was 0.2 ng g-1. A total of 182 rice samples were analyzed with a frequency of contamination of 6%. Levels of OTA in positive samples ranged 0.2-4.8 ng g-1, with an average contamination of all analyzed samples of 1.6 ng g-1.
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