Impact of water activity of diverse media on spore germination of Aspergillus and Penicillium species - École Nationale Supérieure de Biologie Appliquée à la Nutrition et à l'Alimentation ENSBANA Accéder directement au contenu
Article Dans Une Revue International Journal of Food Microbiology Année : 2010

Impact of water activity of diverse media on spore germination of Aspergillus and Penicillium species

Résumé

The effects of water activity (aw) of diverse media i/ culture medium for sporogenesis, aw sp ii/ liquid spore suspension medium, aw su and iii/ medium for germination, aw ge, on the germination time tG of Aspergillus carbonarius, Aspergillus flavus, Penicillium chrysogenum and Penicillium expansum were assessed according to a screening matrix at 0.95 and 0.99 aw. It was shown that i/ reduced tGs were obtained at 0.95 aw sp except for P. expansum ii/ a significant effect of aw su on tG was demonstrated for A. carbonarius, P. chrysogenum and P. expansum iii/ the most important factor for controlling the germination time was the medium for germination except for A. carbonarius (aw su). In accordance with the fact that fungal spores can swell as soon as they are suspended in an aqueous solution it is recommended to re-suspend fungal spores in a solution at the same water activity as that of subsequent germination studies.

Dates et versions

hal-02321673 , version 1 (21-10-2019)

Identifiants

Citer

Sidjè Paule-Marina Nanguy, Jean-Marie Perrier-Cornet, Maurice Bensoussan, Philippe Dantigny. Impact of water activity of diverse media on spore germination of Aspergillus and Penicillium species. International Journal of Food Microbiology, 2010, 142 (1-2), pp.273-276. ⟨10.1016/j.ijfoodmicro.2010.06.031⟩. ⟨hal-02321673⟩
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