Journal of Biotechnology & Biomaterials
Open Access

Abstract

Two species of Lactobacilli ( Lactobacillus rhamnosusand L. paracasie subsp. Paracasie ) were tested for their ability to inhibit growth and mycotoxins production by three species of Fusarium , ( F. graminearum, F. culmorumand F. proliferation ) which are the main producers of mycotoxinsdeoxynivalenol, zearalenone and fumonisin B1, respectively. L.paracasie subsp. Paracasie was found to be effective in reducing the amount of toxins produced, although fungal growth was not affected. The inhibition levels of Deoxynivalenol, Zearalenone and Fumonisin B1 production reached to 56.8, 73.0 and 76.5%, respectively. Meanwhile, L. rhamnosus showed the highest inhibitory activity against both fungal growth and mycotoxins production. It completlysupressed mycelium growth of all the studied Fusarium species and consequently, no toxin was produced in the presence of this bacterium.The obtained results confirm that, selected species of Lactic acid bacteria may be successfully used as a biological control agent of food contamination with moulds and mycotoxins. This bio-preservation action has interesting tecnological possibilities for a variety of fermented food and dairy products.

Biography

Nanis H Gomah is the head of the Department of Dairy Science, Faculty of Agriculture, Assiut University, Egypt. She completed her PhD in Dairy, Agriculture,Assiut,2005. Before taking the position of Head of the department she serverd various position in the university. She served as Lecturer,Dairy Science Department, Faculty of Agriculture, Assiut University,2005, Assistant Lecturer,Dairy Science Department, Faculty of Agriculture, Assiut University,1999 and Demonstrator,Dairy Science Department, Faculty of Agriculture, Assiut University,1992.