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dc.contributor.author
Caruso, Benjamin
dc.contributor.author
Maestri, Damian
dc.contributor.author
Perillo, Maria Angelica
dc.date.available
2018-07-23T18:28:09Z
dc.date.issued
2010-01
dc.identifier.citation
Caruso, Benjamin; Maestri, Damian; Perillo, Maria Angelica; Phosphatidylcholine/vegetable oil pseudo-binary mixtures at the air-water interface: Predictive formulation of oil blends with selected surface behavior; Elsevier Science; Colloids and Surfaces B: Biointerfaces; 75; 1; 1-2010; 57-66
dc.identifier.issn
0927-7765
dc.identifier.uri
http://hdl.handle.net/11336/52860
dc.description.abstract
The present work is an attempt to define how to formulate oil blends with an expected surface behavior using easily accessible data such as chemical compositions. Hence, we determined average surface properties of triglycerides (TG) from olive (O), soybean (S), and walnut (W) oils self-organized in Langmuir films alone or in pseudo-binary mixtures with phosphatidylcholines (PC). Collapse pressure (πc), compressibility modulus (K) and molecular area at the closest packing (Amin) were determined from π-mean molecular area (Mma) isotherms. The πc-composition phase diagrams of TG-PC mixtures provided information about oils solubility limit with PCs in the monolayer phase. A thermodynamic equilibrium model was fitted to the line joining points of monolayer-TGliquid phase coexistence and allowed to obtain interaction parameters, ω, which consistently with those of excess surface energy (ΔGex) and Mma deviations from ideality, contributed to describe interfacial intermolecular interactions. Oil molar fractions (xTG) for TGs-PCs self-assembling into vesicles were estimated from xTG values at πc ≅ 30 mN/m (equilibrium π of bilayers), which resulted higher in egg PC (0.15, 0.2, 0.15 for O, S and W, respectively) than in dipalmitoyl-PC (0.125, 0.075, 0.1). Principal component analysis performed on surface parameters, grouped S and W separated from O. This result was mainly influenced by variables estimating the effect of unsaturation degrees of fatty acids sterified at TGs, Amin and πc. Peanut oils surface data interpolated in πc-C16/C18 and Amin-DBI correlation lines obtained with O-S mixtures (TGmix) and with TGmix-PC supported C16/C18 ratio and DBI as predictors to formulate oil blends with selected surface behavior.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Chemical Composition
dc.subject
Monolayers
dc.subject
Phosphatidylcholine
dc.subject
Surface Parameters
dc.subject
Vegetable Oils
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Phosphatidylcholine/vegetable oil pseudo-binary mixtures at the air-water interface: Predictive formulation of oil blends with selected surface behavior
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-11T17:47:10Z
dc.journal.volume
75
dc.journal.number
1
dc.journal.pagination
57-66
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Caruso, Benjamin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; Argentina
dc.description.fil
Fil: Maestri, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; Argentina
dc.description.fil
Fil: Perillo, Maria Angelica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Ciencias y Tecnología de los Alimentos; Argentina
dc.journal.title
Colloids and Surfaces B: Biointerfaces
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0927776509003701
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.colsurfb.2009.08.014
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