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The production of cyclopiazonic acid by Penicillium commune and cyclopiazonic acid and aflatoxins by Aspergillus flavus as affected by water activity and temperature on maize grains

Gqaleni, N. and Smith, J.E. and Lacey, J. and Gettinby, G. (1996) The production of cyclopiazonic acid by Penicillium commune and cyclopiazonic acid and aflatoxins by Aspergillus flavus as affected by water activity and temperature on maize grains. Mycopathologia, 136 (2). pp. 103-108. ISSN 0301-486X

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Abstract

The combined effects of water activity (aw) and temperature on mycotoxin production by Penicilium commune (cyclopiazonic acid - CPA) and Aspergillus flavus (CPA and aflatoxins - AF) were studied on maize over a 14-day period using a statistical experimental design. Analysis of variance showed a highly significant interaction (P 0.001) between these factors and mycotoxin production. The minimum aw/temperature for CPA production (2264 ng g-1 P. commune, 709 ng g-1 A. flavus) was 0.90 aw/30 °C while greatest production (7678 ng g-1 P. commune, 1876 ng g-1 A. flavus) was produced at 0.98 aw/20 °C. Least AF (411 ng g-1) was produced at 0.90 aw/20 °C and most (3096 ng g-1) at 0.98 aw/30 °C.

Item type: Article
ID code: 17598
Keywords: aflatoxins, cyclopiazonic acid, Penicillium commune, Aspergillus flavus, maize, factorial design, Probabilities. Mathematical statistics, Microbiology, Plant Science, Applied Microbiology and Biotechnology, veterinary (miscalleneous), Microbiology, Agronomy and Crop Science
Subjects: Science > Mathematics > Probabilities. Mathematical statistics
Science > Microbiology
Department: Faculty of Science > Mathematics and Statistics
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 13 May 2010 19:37
    Last modified: 05 Sep 2014 00:51
    URI: http://strathprints.strath.ac.uk/id/eprint/17598

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