Article (Scientific journals)
Changes in physical and biochemical properties of spray dried camel and bovine milk powders.
Zouari, Ahmed; Briard-Bion, Valerie; Schuck, Pierre et al.
2020In LWT - Food Science and Technology, 128, p. 109437
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Keywords :
Camel milk; Glass transition temperature; LC-MS; Spray-drying; Water sorption isotherm
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 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.
Disciplines :
Food science
Author, co-author :
Zouari, Ahmed;  Valuation, Security and Food Analysis Laboratory, National Engineering School of Sfax, Sfax University, Tunisia ; UMR-STLO Science and Technology of Milk and Egg, INRA-Agrocampus, Rennes, France
Briard-Bion, Valerie;  UMR-STLO Science and Technology of Milk and Egg, INRA-Agrocampus, Rennes, France
Schuck, Pierre;  UMR-STLO Science and Technology of Milk and Egg, INRA-Agrocampus, Rennes, France
Gaucheron, Fréderic;  UMR-STLO Science and Technology of Milk and Egg, INRA-Agrocampus, Rennes, France
Delaplace, Guillaume;  UMET, Processus Aux Interfaces et Hygiène des Matériaux, Villeneuve D'acsq, France
Attia, Hamadi;  Valuation, Security and Food Analysis Laboratory, National Engineering School of Sfax, Sfax University, Tunisia
Ayadi, Mohamed ;  Valuation, Security and Food Analysis Laboratory, National Engineering School of Sfax, Sfax University, Tunisia
Language :
English
Title :
Changes in physical and biochemical properties of spray dried camel and bovine milk powders.
Publication date :
June 2020
Journal title :
LWT - Food Science and Technology
ISSN :
0023-6438
eISSN :
1096-1127
Publisher :
Academic Press
Volume :
128
Pages :
109437
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Erasmus+
Funding text :
This study received financial support from Erasmus+ .
Available on ORBi :
since 13 December 2024

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