Title :

Changes in physical and biochemical properties of spray dried camel and bovine milk powders.

Author(s) :

Zouari, Ahmed [Auteur]
Briard-Bion, Valerie [Auteur]
Schuck, Pierre [Auteur]
Gaucheron, Fréderic [Auteur]
Delaplace, Guillaume [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Unité Matériaux et Transformations (UMET) - UMR 8207
Attia, Hamadi [Auteur]
Ayadi, Mohamed Ali [Auteur]

Journal title :

LWT

Abbreviated title :

LWT

Volume number :

128

Pages :

109437

Publisher :

Elsevier BV

Publication date :

2020-06

ISSN :

0023-6438

English keyword(s) :

Camel milk
Spray-drying
Water sorption isotherm
Glass transition temperature
LC-MS

HAL domain(s) :

Sciences du Vivant [q-bio]/Ingénierie des aliments

English abstract : [en]

This study aimed at investigating the changes in skim camel milk (SCMP) and skim bovine milk (SBMP) powders produced by spray-drying. The physical (sorption isotherms at 25 °C and the glass transition temperature Tg at ...
Show more >This study aimed at investigating the changes in skim camel milk (SCMP) and skim bovine milk (SBMP) powders produced by spray-drying. The physical (sorption isotherms at 25 °C and the glass transition temperature Tg at 0.13, 0.23 and 0.33 of water activities (aw)) and the biochemical (LC-MS, before and after drying) properties were assessed. Compared to SBMP, the results for SCMP indicated lower protein denaturation extent, lower critical aw for lactose crystallization (aw = 0.60 instead of 0.70), and lower Tg at 0.13 of aw (54.6 ± 1.4 °C instead of 57.8 ± 0.4 °C). Fitted to Guggenheim, Anderson and De Boer (GAB) model, the water sorption isotherms showed that both powders exhibited the same monolayer moisture content (Xm = 2.0 g 100 g−1, p > 0.05). These findings were linked to the absence of β-lactoglobulin, the high surface lactose content, the high initial lactose crystallization and the low size distribution (d50 < 10 μm) of SCMP.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Submission date :

2020-12-08T15:48:05Z