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231223s2007 xx ||||| 00| ||eng c |
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|a pubmed24n0568.xml
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|a (NLM)17511488
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Fernández, Marta Cejudo
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Monoglycerides and beta-lactoglobulin adsorbed films at the air-water interface. structure, microscopic imaging, and shear characteristics
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| 264 |
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|c 2007
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 03.08.2007
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|a Date Revised 19.11.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a In this work we have analyzed the structural, topographical, and shear characteristics of mixed monolayers formed by adsorbed beta-lactoglobulin (beta-lg) and spread monoglyceride (monopalmitin or monoolein) on a previously adsorbed protein film. Measurements of the surface pressure (pi)-area (A) isotherm, Brewster angle microscopy (BAM), and surface shear characteristics were obtained at 20 degrees C and at pH 7 in a modified Wilhelmy-type film balance. The pi-A isotherm and BAM images deduced for adsorbed beta-lactoglobulin-monoglyceride mixed films at pi lower than the equilibrium surface pressure of beta-lactoglobulin (pi(e)(beta-lg)) indicate that beta-lactoglobulin and monoglyceride coexist at the interface. However, the interactions between protein and monoglyceride are somewhat weak. At higher surface pressures (at pi > or = pi(e)(beta-lg)) a protein displacement by the monoglyceride from the interface takes place. The surface shear viscosity (eta(s)) of mixed films is very sensitive to protein-monoglyceride interactions and displacement as a function of monolayer composition (protein/monoglyceride fraction) and surface pressure. Shear can induce change in the morphology of monoglyceride and beta-lactoglobulin domains, on the one hand, and segregation between domains of the film-forming components on the other hand. In addition, the displacement of beta-lactoglobulin by the monoglycerides is facilitated under shear conditions
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Lactoglobulins
|2 NLM
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| 650 |
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|a Membranes, Artificial
|2 NLM
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| 650 |
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|a Milk Proteins
|2 NLM
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| 650 |
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|a Monoglycerides
|2 NLM
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| 650 |
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|a Whey Proteins
|2 NLM
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| 700 |
1 |
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|a Sánchez, Cecilio Carrera
|e verfasserin
|4 aut
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| 700 |
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|a Rodríguez Niño, Maria Rosario
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rodríguez Patino, Juan M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 23(2007), 13 vom: 19. Juni, Seite 7178-88
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:23
|g year:2007
|g number:13
|g day:19
|g month:06
|g pages:7178-88
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