期刊
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
卷 23, 期 1, 页码 103-109出版社
SOC BRASILEIRA QUIMICA
DOI: 10.1590/S0103-50532012000100015
关键词
rice; occurrence; ochratoxin A; citrinin; extraction method
资金
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Instituto Riograndense do Arroz (IRGA)
This study compared four extraction procedures for the simultaneous determination of mycotoxins ochratoxin A and citrinin in samples of rice. Soares and Rodriguez-Amaya and Tanaka procedures and the extraction methods QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) and by ultrasound were compared in terms of residue generation, limit of detection, limit of quantification and simultaneous recovery of mycotoxins. Soares and Rodriguez-Amaya and the method by ultrasound presented the lowest recoveries, 83 and 55% for ochratoxin A (OTA) and 48 and 55% for citrinin (CIT), respectively. Tanaka procedure and QuEChERS method presented the highest recoveries, 98 and 105% for OTA and 64 and 78% for CIT, respectively. The latter enabled the simultaneous extraction of the two mycotoxins, with a reduction of up to 25 times of the amount of the involved solvent.
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