Ochratoxin A in coffee beans (Coffea arabica L.) processed by dry and wet methods
Abstract
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, Aspergillus sulphureus and Aspergillus
sclerotiorum 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.
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