Naslov
Control of aflatoxin contamination in maize based feed by Trametes versicolor

Autori
Bello, Cristiano ; Reverberi, Massimo ; Fanelli, Corrado ; Fabbri, Anna Adele ; Scarpari, Marzia ; Dell Asta, Chiara ; Righi, Federico ; Zjalic, Slaven ; Bertocchi, Luigi

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstarct Book XVI International Symposium Feed Technology / Lević, Jovanka - Novi Sad : Univerzitet u Novom Sadu, 2014, 47-47

ISBN
978-86-7994-042-1

Skup
XVI International Symposium Feed Technology

Mjesto i datum
Novi Sad, Srbija, 28.10.2014. - 30.10.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
aflatoxins ; maize ; Trametes versicolor ; detoxification

Sažetak
Contamination of feed and feed stuff with aflatoxins is a worldwide problem. Probably due to climatic changes the contamination of maize with aflatoxins has become more frequent problem also in some European countries. These toxic secondary metabolites of some filamentous fungi belonging to genera Aspergillus can severely impair animal production both due to their health hazardous effects and possibility of transmission along the food chain. Along the years different control strategies were applied but none of them has solved the problem of aflatoxin contamination. The ongoing researches often focus on detoxification strategies. In this work the effect of the basidiomycete Trametes versicolor metabolites on the aflatoxin production by Aspergillus flavus in maize, was investigated. The addition of fine powder, obtained by milling 14 days old T. versicolor cultures grown on pure sugar beet pulp, to maize kernels (moistened up to aw 0.85) at 1% w/v significantly (p<0.001) inhibited the production of aflatoxin B1 (up to 85%). Furthermore, treatment of contaminated maize with culture filtrates of T. versicolor containing ligninolytic enzymes, namely laccases at 1U/mg protein, showed a significant reduction of the content of aflatoxin B1 (-70% ; p<0.01). Finally, treated and control maize samples were also compared under in vitro ruminal digestive condition to simulate the possible releasing of aflatoxins upon cow’s digestion. These results indicates that T. versicolor could be applied both in prevention of aflatoxin contamination and detoxification of contaminated feed and feed stuff.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Biotehnologija

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