Determinação de deoxinivalenol e zearalenona em arroz natural e parboilizado e suas frações utilizando quEChERS e HPLC/UV-FL

• Main Authors: Renata Heidtmann-Bemvenuti, Helen Cristina dos Santos Hackbart, Michele Moraes de Souza, Eliana Badiale-Furlong, Giniani Carla Dors, Carlos Alberto Fagundes
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2012-01-01
• Series: Química Nova
• Subjects: QuEChERS; deoxynivalenol; zearalenone
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600033&lng=en&tlng=en
• ISSN: 1678-7064

The QuEChERS extraction method followed by quantification using HPLC/UV-FL was evaluated for deoxynivalenol (DON) and zearalenone (ZEA) determination in natural and parboiled rice and their fractions (bran and husk). The comparison between QuEChERS and partition with acetonitrile extraction showed that the first one was better. It presented higher recovery (91% for DON, 105% for ZEA) wih precision ranging from 1.5 to 18.6%. The limits of quantification were 22.2 µg kg-1 for DON and 4.3 µg kg-1 for ZEA. DON and ZEA showed higher levels in endosperm of parboiled rice (8 e 111.7 µg kg-1, respectively) when compared to natural rice.