Production of ochratoxin A by Aspergillus carbonarius on coffee cherries.
JOOSTEN, H.M.L.J., GOETZ, J., PITTET, A., SCHELLENBERG, M. and BUCHELI, P.
International Journal of Food Microbiology 65: 39 –44.
2001
บทคัดย่อ
Robusta coffee cherries collected before and during sun drying from two coffee farms in Thailand were examined for moulds producing OA. Aspergillus ochraceus was detected in one sample and Aspergillus carbonarius was isolated from 1/14 samples. On gamma – irradiated coffee cherries, each of the six tested A.carbonarius strains produced OA. More than 4800 mg/kg of toxin were detected under optimal conditions (25oC, water activity (aw) 0.99), OA production was strongly reduced (230 mg/kg) at an aw of 0.94.