Casein utilization by Streptococcus thermophilus results in a diauxic growth in milk |
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| Authors: | Letort Catherine Nardi Michèle Garault Peggy Monnet Véronique Juillard Vincent |
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| Affiliation: | Unité de Recherches Laitières et Génétique Appliquée. Unité de Biochimie et Structure des Protéines, Institut National de la Recherche Agronomique, 78352 Jouy-en-Josas Cedex, France. |
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| Abstract: | In milk, Streptococcus thermophilus displays two distinct exponential growth phases, separated by a nonexponential one, during which proteinase synthesis was initiated. During the second exponential phase, utilization of caseins as the source of amino acids resulted in a decrease in growth rate, presumably caused by a limiting peptide transport activity. |
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