Ochratoxin Ochratoxin A (OTA or OA) is produced by Aspergilus and Penicillium fungi. It affects the kidneys and causes both acute and chronic lesions. It is also genotoxic and affects the immune system. Ochratoxin A is a known contaminant of cereals. Recently Ochratoxin A was found to contaminate a wide range of other stored products and processed foods including coffee, beer, dried fruit, wine...
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