Abstract
The nutritional value of wheat artificially infested with Penicillium cyclopium, Mucor sp. and Aspergillus flavus was studied in two balance experiments on rats. The samples of ground wheat were sterilized by radiation, inoculated with the suspension of mould spores and incubated for 10 or 30 days at 25°C. The wheat samples and strains of moulds were tested for the production of aflatoxins, cyclopiazonic acid, citrinine, patuline, ochratoxin A and penicillic acid. In addition, the toxicity of wheat extract was tested on chicken embryos. Analyses for mycotoxins and chick embryo toxicity tests were negative. Mould infestation of wheat decreased the fat content and increased fat acidity. The amino acid content was somewhat higher in the inoculated wheat than in a non-inoculated control. The balance experiments showed that the strong infestation of wheat with moulds had no significant effect on the nitrogen digestibility or biological value of protein in rats.
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