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Phase segregation of amylopectin and beta-lactoglobulin in aqueous system

Quiroga, Carla LU and Bergenståhl, Björn LU (2008) In Carbohydrate Polymers 72(1). p.151-159
Abstract
Phase behavior of aqueous amylopectin and beta-lactoglobulin system was studied using Fourier transform infrared spectroscopy. Polysaccharide-protein mixtures were prepared at different concentrations and left for equilibration; afterwards their spectra were recorded and correlated using Partial Least Square analysis. Tertiary phase diagrams were built for the system at different equilibration times (2 and 6 weeks); the binodals were asymmetric and displayed toward the protein concentration. In the two-phase region of the phase diagrams the mixtures showed an upper layer rich in beta-lactoglobulin and a lower layer rich in retrograded amylopectin, and in some cases an intermediate layer was seen which was a metastable phase.
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
amylopectin, beta-lactoglobulin, transform infrared spectroscopy, Fourier, polymer incompatibility, phase segregation, phase diagram
in
Carbohydrate Polymers
volume
72
issue
1
pages
151 - 159
publisher
Elsevier
external identifiers
  • wos:000253303900018
  • scopus:37849045896
ISSN
0144-8617
DOI
10.1016/j.carbpol.2007.07.041
language
English
LU publication?
yes
id
667ba288-fdf7-4ce9-9691-5406f82d8ce6 (old id 1196955)
date added to LUP
2016-04-01 11:44:09
date last changed
2023-11-10 22:51:31
@article{667ba288-fdf7-4ce9-9691-5406f82d8ce6,
  abstract     = {{Phase behavior of aqueous amylopectin and beta-lactoglobulin system was studied using Fourier transform infrared spectroscopy. Polysaccharide-protein mixtures were prepared at different concentrations and left for equilibration; afterwards their spectra were recorded and correlated using Partial Least Square analysis. Tertiary phase diagrams were built for the system at different equilibration times (2 and 6 weeks); the binodals were asymmetric and displayed toward the protein concentration. In the two-phase region of the phase diagrams the mixtures showed an upper layer rich in beta-lactoglobulin and a lower layer rich in retrograded amylopectin, and in some cases an intermediate layer was seen which was a metastable phase.}},
  author       = {{Quiroga, Carla and Bergenståhl, Björn}},
  issn         = {{0144-8617}},
  keywords     = {{amylopectin; beta-lactoglobulin; transform infrared spectroscopy; Fourier; polymer incompatibility; phase segregation; phase diagram}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{151--159}},
  publisher    = {{Elsevier}},
  series       = {{Carbohydrate Polymers}},
  title        = {{Phase segregation of amylopectin and beta-lactoglobulin in aqueous system}},
  url          = {{http://dx.doi.org/10.1016/j.carbpol.2007.07.041}},
  doi          = {{10.1016/j.carbpol.2007.07.041}},
  volume       = {{72}},
  year         = {{2008}},
}