Evaluation of Nitrogenous Substrates Such as Peptones from Fish:A New Method Based on Gompertz Modeling of Microbial Growth

Laurent Dufossé (1) , Denis de La Broise (2) , Fabienne Guérard (2)

1 LCSNSA - Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments
2 LEMAR - Laboratoire des Sciences de l'Environnement Marin (LEMAR)

Fish peptones from tuna, cod, salmon, and unspecified fish were compared with a casein one by using a new method based on Gompertz modeling of microbial growth. Cumulative results obtained from six species of bacteria, yeasts, and fungi showed that, in most cases, these fish peptones are very effective. Nevertheless, this study raised some questions about the standardization of fish raw material, the enzymatic hydrolysis of fish proteins, and the composition of the culture medium used for testing the peptones.

Mots clés: Hydrolysis. Enzymatic Hydrolysis. Peptone. Microbial Growth. Gompertz Modeling

Domaines: Biodiversité et Ecologie; Biotechnologies; Alimentation et Nutrition; Biochimie, Biologie Moléculaire

Laurent Dufossé, Denis de La Broise, Fabienne Guérard. Evaluation of Nitrogenous Substrates Such as Peptones from Fish:A New Method Based on Gompertz Modeling of Microbial Growth. Current Microbiology, 2001, 42 (1), pp.32-38. ⟨10.1007/s002840010174⟩. ⟨hal-02469656⟩