Effects of selected essential oils on the growth and production of ochratoxin A by Penicillium verrucosum.

Environmental factors affect efficacy of some essential oils and resveratrol to control growth and ochratoxin A production by Penicillium verrucosum and A. westerdijkiae on wheat grain

Ochratoxin A in Cereal Products, Potential Hazards and Prevention strategies: A Review

Mycotoxins are microbial agents which cause food or feed-borne intoxications. Mycotoxins are undesireable compounds often found in cereal grains and forages. Production of mycotoxins is dependent on environmental conditions and agricultural practices. Moisture level ranges between 13% to 18% and temperatures between 20 C and 30 C can increase fungal growth rate during growing seasons as well as...

Growth of Penicillium verrucosum and production of ochratoxin A on nonsterilized wheat grain incubated at different temperatures and water content.

The results of two experiments with wheat grain inoculated with Penicillium verrucosum are reported. In Experiment I, wheat grain, containing 10, 20 and 30% water, was incubated for 2 weeks at 10, 15, 21 and 28 degrees C. In Experiment II, wheat grain, containing 14, 16, 18, 20 and 22% water, was incubated for 2 weeks at 10, 15, and 20 degrees C. At initial moisture content (IMC) of the wheat g...

Differences in the Regulation of Ochratoxin A by the HOG Pathway in Penicillium and Aspergillus in Response to High Osmolar Environments

Penicillium verrucosum, P. nordicum and Aspergillus carbonarius are three important ochratoxin A producing species. P. verrucosum is in addition able to produce citrinin. It has been shown earlier that P. nordicum is adapted to NaCl rich environments like salt rich dry cured foods or even salines. In this organism, the biosynthesis of ochratoxin A plays an adaptive role in this habitat. P. verr...

Penicillium viridicatum, Penicillium verrucosum, and production of ochratoxin A.

The taxonomy of the important mycotoxigenic species Penicillium viridicatum and P. verrucosum was reviewed to clarify disagreements relating to the three P. viridicatum groups erected by Ciegler and coworkers (A. Ciegler, D. I. Fennell, G. A. Sansing, R. W. Detroy, and G. A. Bennett, Appl. Microbiol. 26:271-278, 1973) and the mycotoxins produced by them. Cultures derived from the types of these...