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Forschungsinformationssystem Agrar und Ernährung

Informationsportal des Bundes und der Länder

Mykotoxine und Mikroomyceten: Charakterisierung und Selektion gesundheitlich unbedenklicher Schimmelpilze für den Einsatz im Lebensmittelbereich

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Ernährung und Verbraucherschutz

Dieses Projekt leistet einen Beitrag zum Forschungsziel 'Ernährung und Verbraucherschutz'. Welche Förderer sind dazu aktiv? Welche Teilziele gibt es dazu? Schauen Sie nach:
Ernährung und Verbraucherschutz


Förderkennzeichen: MRI-MBT-02-310
Laufzeit: 01.01.2001 - 31.12.2008
Forschungszweck: Experimentelle Forschung

Species belonging to the genus Penicillium are known to produce a variety of mycotoxins. The use of non-toxigenic isolates is therefore of a major concern when selecting strains for improving mould-ripened food products. For initial selection 249 different strains of the genus Penicillium originally isolated from food products have been used in this study. The isolates were grouped according to the pattern of their secondary metabolites by TLC methods. Mould ripened salamis were then produced to prove the technological suitability of the strains. The potency of selected strains to produce antibiotic, cytotoxic and mutagenic metabolites was proven by the use of bacterial test systems, the MTT (3-(4.5-dimethylthiazol-2yl)-2.5-diphenyltetrazoliumbromide) -cell culture bioassay and the AMES-test, respectively.
A total of 13 isolates out of 249 strains tested were found to meet the demands on technological suitability and toxicological safety to the greatest extent and could thus be recommended for the use in the meat industry. The chemotaxonomic characterisation of the strains showed correlation with the technological suitability and offers a simple but useful first step in selecting appropriate strains. Moreover, the overall selection scheme presented in this study was found to be useful for screening out toxigenic species and to enhance food safety aspects.

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