Ochratoxin A in coffee beans (Coffea arabica L.) processed by dry and wet methods
Luís Roberto Batista, Sara Maria Chalfoun, Cristina Ferreira Silva, Marcelo Cirillo, Eugênia Azevedo Varga and Rosane Freitas Schwan
Food Control, Volume 20, Issue 9, September 2009, Pages 784-790
2009
บทคัดย่อ
The incidence of ochratoxin A was studied in different coffee (Coffea arabica L.) samples. A higher incidence of filamentous fungi was observed in the coffee swept from ground and floating coffee samples. The species Aspergillus ochraceus, Aspergillussulphureus and Aspergillussclerotiorum were ochratoxin A producing. In 128 (44%) samples ochratoxin A was not detected; however, in 89 samples (31%), ochratoxin A was detected at 0.1–5.0 μg/Kg levels. Other 25% samples presented contamination above 5.0 μg/Kg. This study showed that the fractions coffee swept from ground and floating coffee represents a serious risk of ochratoxin A contamination.