Psychrotrophic yellowish-brown blotch (tolaasin), slime and bitter proteolysis agent
Taches visqueuses jaune-brunâtre à brun rouille en surface du fromage, liquéfaction superficielle et saveur amère-putride
🧀 1 concerned cheese(s) & family(ies) •
🦠 1 linked living taxon(s)
🔍 Clinical, Sensory & Functional Diagnosis
Taches visqueuses jaune-brunâtre à brun rouille en surface du fromage, liquéfaction superficielle et saveur amère-putride
🧬 Biochemical, Enzymatic & Genetic Mechanism
Sécrétion du lipodepsipeptide formant des pores tolaasine (18 acides aminés), de sidérophores pyoverdines et de métalloprotéases/lipases thermorésistantes
🌡️ Physicochemical Parameters & Target Matrices
Conservation réfrigérée et début d'affinage (2 à 14 jours) • Psychrotrophie (croissance dès 2-4 °C), contamination par l'eau de refroidissement ou des ingrédients végétaux/fongiques, pH supérieur à 5.4
🛡️ Cellar Protocol, Prophylaxis & Biocontrol
Traitement bactéricide des eaux de process, décontamination thermique/ionisation des ingrédients d'aromatisation et maintien d'un pH inférieur à 5.2
📚 Specialized Sources & Publications (HAL-INRAE, UniProtKB, DOI, PubMed)
🧀 Associated Cheeses & Matrices (1)
Matrice sensible : Agent psychrotrophe des taches brun-jaunâtre, de déstructuration membranaire (tolaasine) et d'amertume
🦠 Living Taxa Linked to This Concept / Symptom (1)
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