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Micromycetes, producers of toxins, detected on stored vegetables

100%

Lugauskas A., Repeckiene J., Novosinskas H.

Annals of Agricultural and Environmental Medicine

2005

tom 12

nr 2

253-260

In 2003-2004, investigations of mycological contamination of stored and newly harvested vegetables were carried out. The aim of the study was to detect fungal species able to synthesize toxic metabolites, which are spread on vegetables under various conditions. For mycological investigations, samples of carrots, onions and cabbage were taken from storehouses with different storage periods and conditions. Penicillium expansum, P. nalgiovense, Mucor silvaticus and Penicillium verrucosum were more frequently detected on carrots, Penicillium expansum - on onions and Aspergillus niger, Botrytis cinerea, Mucor hiemalis, Penicillium funiculosum and Penicillium expansum - on cabbages. Storing conditions of vegetables influenced distribution of different fungal species. Primary screening using CYA and YES test-media showed that 46.7% of tested strains may be evaluated as toxin producers. The ability of fungi to produce mycotoxins depends on their growth substrata. According to Rf and fluorescence in the UV of compounds comparing with standards, such toxins as patulin, cytochalasin and penitrem were identified. The ability of Penicillium expansum Sv-168-1 growing on different foodstuff and especially potato to produce patulin was confirmed quantitatively.

The influence of mycotoxins exposure on human and animal health

75%

Sztanke K., Pasternak K., Kulik T.

Polish Journal of Environmental Studies

2004

tom 13

nr Suppl.2, Part 1

Mycotoxins are the secondary fungal metabolites, which cause toxic effects on human and animal organisms. They are frequent food contaminants. The most common route of exposure to mycotoxins is ingestion, but it may also involve dermal, respiratory and parenteral routes. These metabolites are produced by various fungal and mould strains like Aspergillus spp., Penicillium spp. and Fusarium spp. The most prominent mycotoxins are aflatoxins, trichothecenes, zearalenone, ochratoxins, fumonisins, patulin, citrinin, alternariol and its monomethyl ether, gliotoxin and beauvericin. There are several diseases, which are mycotoxin-related. Mycotoxins cause acute and chronic intoxications (mycotoxicoses), allergies and tumours. They may demonstrate genotoxic, mutagenic, cytotoxic, teratogenic and carcinogenic properties. Some of them cause strong estrogenic effects and infertility. The others are immunosuppressive, nephrotoxic and hepatotoxic. Taking into account wide range of mycotoxins toxic effects on living organisms, it is established that these compounds are the one of main factors influencing human and animal health.

Ograniczanie wyników

1 Annals of Agricultural and Environmental Medicine

1 Polish Journal of Environmental Studies

1 Kulik T.

1 Lugauskas A.

1 Novosinskas H.

1 Pasternak K.

1 Repeckiene J.

1 Sztanke K.

1 2005

1 2004

Wyniki wyszukiwania

Micromycetes, producers of toxins, detected on stored vegetables

The influence of mycotoxins exposure on human and animal health