β-Casein Bilayer Adsorption at the Solution/Air Interface: Experimental Evidences and Theoretical Description
✍ Scribed by D.O. Grigoriev; V.B. Fainerman; A.V. Makievski; J. Krägel; R. Wüstneck; R. Miller
- Book ID
- 102584639
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 136 KB
- Volume
- 253
- Category
- Article
- ISSN
- 0021-9797
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✦ Synopsis
Ellipsometric and surface pressure studies of beta-casein adsorption layers at the water/air interface support the idea of a model that assumes the formation of a second layer adjacent to the primary adsorption layer. A thermodynamic model describes the concentration behavior of the surface pressure and the adsorbed amount with one and the same set of model parameters over the entire concentration range studied.
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The adsorption of -casein at the air-solution interface has been monitored in equilibrium conditions by neutron reflectivity. It was observed that for a bulk concentration of 100 mg/L, the amount of protein adsorbed per unit surface increases from 2.8 to 4.4 mg/m 2 when the ethanol concentration in