Production of ochratoxin A by Aspergillus carbonarius on coffee cherries

Authors
Joosten, HMLJ Goetz, J Pittet, A Schellenberg, M Bucheli, P
Citation
Hmlj. Joosten et al., Production of ochratoxin A by Aspergillus carbonarius on coffee cherries, INT J F MIC, 65(1-2), 2001, pp. 39-44
Citations number
19
Categorie Soggetti
Food Science/Nutrition
Journal title
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
ISSN journal
01681605 → ACNP
Volume
65
Issue
1-2
Year of publication
2001
Pages
39 - 44
Database
ISI
SICI code
0168-1605(20010411)65:1-2<39:POOABA>2.0.ZU;2-7
Abstract
Robusta coffee cherries collected before and during sun drying from two cof fee farms in Thailand were examined for moulds producing ochratoxin A (OA). Aspergillus ochraceus was only detected in one sample, whereas Aspergillus carbonarius was isolated from 7 out of 14 samples. On gamma -irradiated co ffee cherries, each of the six tested A. carbonarius strains produced OA. M ore than 4800 mug kg(-1) of toxin were detected under optimal conditions (2 5 degreesC, a(w) 0.99). OA production was strongly reduced (230 mug kg(-1)) at an a(w) of 0.94. (C) 2001 Elsevier Science B.V. All rights reserved.