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Determination of ochratoxin A in coriander (Coriandrum sativum L.) by HPCL/fluorescence detection

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Author(s): Lino Celeste Matos | Baeta Lurdes | Pena Angelina Simões | Silveira Irene Noronha

Journal: Química Nova
ISSN 0100-4042

Volume: 29;
Issue: 3;
Start page: 436;
Date: 2006;
Original page

Keywords: ochratoxin A | coriander | HPLC

ABSTRACT
An analytical study based on extraction with acetonitrile-water, immunoaffinity column cleanup, and HPLC/fluorescence detection for separation and identification of ochratoxin A in coriander was carried out. Validation of the applied methodology was done through accuracy and precision studies. Homogenized samples of coriander were spiked in triplicate with ochratoxin A at 0.5, 1.0, 2.0, and 5.0 µg/kg levels. Recovery values were in the range of 98% for a fortification level at 0.5 µg/kg to 109.1% at 1.0 µg/kg. Application to coriander samples available in Portuguese markes showed no contamination with ochratoxin A.

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