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Appl Environ Microbiol. 1969 May; 17(5): 742-744
Copyright © 1969 American Society for Microbiology. All Rights Reserved.

Production of Ochratoxin A by Aspergillus ochraceus in a Semisynthetic Medium

N. D. Davis, J. W. Searcy and U. L. Diener

Department of Botany and Plant Pathology, Auburn University Agricultural Experiment Station, Auburn, Alabama 36830

ABSTRACT

Aspergillus ochraceus NRRL 3174 produced 29 mg of ochratoxin A per 100 ml of nutrient medium consisting of 4% sucrose and 2% yeast extract. Ochratoxin A was the sole metabolite present in the chloroform extracts of the growth medium. Trace amounts of ochratoxin B were produced in a 1% yeast medium, and a comparatively large amount of ochratoxin B was produced in media containing 16 and 32% sucrose.

Appl Environ Microbiol. 1969 May; 17(5): 742-744
Copyright © 1969 American Society for Microbiology. All Rights Reserved.





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Copyright © 1969 by the American Society for Microbiology. All rights reserved.