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Solubility of amylose/ionic surfactant complexes in dilute aqueous solutions: Dependence on surfactant concentration

Karlberg, Maria LU ; Piculell, Lennart LU and Huang, Lynga LU (2007) In Carbohydrate Polymers 70(3). p.350-354
Abstract
The solubility in dilute aqueous solutions of amylose complexed with ionic surfactants has been investigated by turbidity measurements. The turbidity depended on both the amylose and the surfactant concentrations. Low and high surfactant concentrations resulted in macroscopic phase separation, while mixtures at intermediate surfactant concentrations remained monophasic for at least one month. The solubility of the complexes was sensitive to the addition of salt as well as to the surfactant charge and hydrophobic chain length. These results are interpreted in terms of an electrostatic stabilisation of soluble complexes. Complexes with a non-ionic surfactant were not soluble at any mixing ratio. (c) 2007 Elsevier Ltd. All rights reserved.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
solubilisation, starch, inclusion complex, amylose, surfactant
in
Carbohydrate Polymers
volume
70
issue
3
pages
350 - 354
publisher
Elsevier
external identifiers
  • wos:000250257600015
  • scopus:34548515031
ISSN
0144-8617
DOI
10.1016/j.carbpol.2007.05.007
language
English
LU publication?
yes
id
1a2ee655-eeb6-4f00-a7e9-b35bf23727cf (old id 654383)
date added to LUP
2007-12-13 15:45:53
date last changed
2017-01-01 04:26:29
@article{1a2ee655-eeb6-4f00-a7e9-b35bf23727cf,
  abstract     = {The solubility in dilute aqueous solutions of amylose complexed with ionic surfactants has been investigated by turbidity measurements. The turbidity depended on both the amylose and the surfactant concentrations. Low and high surfactant concentrations resulted in macroscopic phase separation, while mixtures at intermediate surfactant concentrations remained monophasic for at least one month. The solubility of the complexes was sensitive to the addition of salt as well as to the surfactant charge and hydrophobic chain length. These results are interpreted in terms of an electrostatic stabilisation of soluble complexes. Complexes with a non-ionic surfactant were not soluble at any mixing ratio. (c) 2007 Elsevier Ltd. All rights reserved.},
  author       = {Karlberg, Maria and Piculell, Lennart and Huang, Lynga},
  issn         = {0144-8617},
  keyword      = {solubilisation,starch,inclusion complex,amylose,surfactant},
  language     = {eng},
  number       = {3},
  pages        = {350--354},
  publisher    = {Elsevier},
  series       = {Carbohydrate Polymers},
  title        = {Solubility of amylose/ionic surfactant complexes in dilute aqueous solutions: Dependence on surfactant concentration},
  url          = {http://dx.doi.org/10.1016/j.carbpol.2007.05.007},
  volume       = {70},
  year         = {2007},
}