Major Role of Voluminosity in the Compressibility and Sol–Gel Transition of Casein Micelle Dispersions Concentrated at 7 °C and 20 °C - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Foods Année : 2019

Major Role of Voluminosity in the Compressibility and Sol–Gel Transition of Casein Micelle Dispersions Concentrated at 7 °C and 20 °C

Résumé

The objective of this work is to bring new information about the influence of temperatures (7 C and 20 C) on the equation of state and sol–gel transition behavior of casein micelle dispersions. Casein micelle dispersions have been concentrated and equilibrated at di erent osmotic pressures using equilibrium dialysis at 7 C and 20 C. The osmotic stress technique measured the osmotic pressures of the dispersions over a wide range of concentrations. Rheological properties of concentrated dispersions were then characterized, respectively at 7 C and at 20 C. The essential result is that casein micelle dispersions are less compressible at 7 C than at 20 C and that concentration of sol–gel transition is lower at 7 C than at 20 C, with compressibility defined as the inverse to the resistance to the compression, and that is proportional to the cost to remove water from structure. From our interpretations, these two features were fully consistent with a release of soluble -casein and nanoclusters CaP and an increased casein micelle hydration and apparent voluminosity at 7 C as compared with 20 C.
Fichier principal
Vignette du fichier
foods-08-00652_1.pdf (2.53 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-02399317 , version 1 (25-05-2020)

Licence

Paternité

Identifiants

Citer

Floriane Doudies, Anne-Sophie Arsene, Fabienne Garnier-Lambrouin, Marie-Hélène Famelart, Antoine Bouchoux, et al.. Major Role of Voluminosity in the Compressibility and Sol–Gel Transition of Casein Micelle Dispersions Concentrated at 7 °C and 20 °C. Foods, 2019, 8 (12), pp.652. ⟨10.3390/foods8120652⟩. ⟨hal-02399317⟩
72 Consultations
39 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More