Effect of heat treatments on foaming and physico-chemical properties of bovine and camel sodium caseinate - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Article Dans Une Revue Journal of Dairy Research Année : 2022

Effect of heat treatments on foaming and physico-chemical properties of bovine and camel sodium caseinate

Résumé

The objective of this study was to examine the foaming properties of sodium caseinates (Na-cas) extracted from bovine and camel fresh milks after heating at 70, 80, 90 and 100°C for 30 min at laboratory scale. Experimental results indicated that greater foam was obtained with camel Na-cas than with bovine Na-cas at all heating temperatures due to the higher β-casein content in camel caseins (~53.4% of total proteins, RP-HPLC results). Increasing heat-treatment temperature to 100°C significantly enhanced the foaming properties by raising surface hydrophobicity and decreasing electronegative charge as well as interfacial tension values upon heating. This study concluded that camel Na-cas has important foaming properties in agricultural and food industries.
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Dates et versions

hal-04690917 , version 1 (06-09-2024)

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Roua Lajnaf, Hamadi Attia, Mohamed Ali Ayadi. Effect of heat treatments on foaming and physico-chemical properties of bovine and camel sodium caseinate. Journal of Dairy Research, 2022, 88 (4), pp.440-444. ⟨10.1017/S0022029921000893⟩. ⟨hal-04690917⟩
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