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Effect of the ionic liquid 1-ethyl-3-methylimidazolium acetate on the phase transition of starch : dissolution or gelatinization?
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Mateyawa, S., Xie, Fengwei, Truss, Rowan W., Halley, Peter J., Nicholson, Timothy M., Shamshina, Julia L., Rogers, Robin D., Boehm, M. W. and McNally, Tony (2013) Effect of the ionic liquid 1-ethyl-3-methylimidazolium acetate on the phase transition of starch : dissolution or gelatinization? Carbohydrate Polymers, 94 (1). pp. 520-530. doi:10.1016/j.carbpol.2013.01.024 ISSN 0144-8617.
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WRAP-effect-ionic-liquid-1-ethyl-3-methylimidazolium-acetate-Xie-2013.pdf - Accepted Version - Requires a PDF viewer. Download (1964Kb) | Preview |
Official URL: http://dx.doi.org/10.1016/j.carbpol.2013.01.024
Abstract
This work revealed that the interactions between starch, the ionic liquid 1-ethyl-3-methylimidazolium acetate ([Emim][OAc]), and water might contribute to the phase transition (gelatinization, dissolution, or both) of native starch at reduced temperature. Using mixtures of water and [Emim][OAc] at certain ratios (7.2/1 and 10.8/1 mol/mol), both the gelatinization and dissolution of the starch occur competitively, but also in a synergistic manner. At lower [Emim][OAc] concentration (water/[Emim][OAc] molar ratio≥25.0/1), mainly gelatinization occurs which is slightly impeded by the strong interaction between water and [Emim][OAc]; while at higher [Emim][OAc] concentration (water/[Emim][OAc] molar ratio≤2.8/1), the dissolution of starch is the major form of phase transition, possibly restricted by the difficulty of [Emim][OAc] to interact with starch.
| Item Type: | Journal Article | ||||||||||
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| Subjects: | Q Science > QD Chemistry Q Science > QK Botany Q Science > QP Physiology T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||||
| Library of Congress Subject Headings (LCSH): | Starch, Biopolymers, Gelation | ||||||||||
| Journal or Publication Title: | Carbohydrate Polymers | ||||||||||
| Publisher: | Pergamon Press | ||||||||||
| ISSN: | 0144-8617 | ||||||||||
| Official Date: | 15 April 2013 | ||||||||||
| Dates: |
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| Volume: | 94 | ||||||||||
| Number: | 1 | ||||||||||
| Page Range: | pp. 520-530 | ||||||||||
| DOI: | 10.1016/j.carbpol.2013.01.024 | ||||||||||
| Status: | Peer Reviewed | ||||||||||
| Publication Status: | Published | ||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||
| Date of first compliant deposit: | 17 December 2018 | ||||||||||
| Date of first compliant Open Access: | 17 December 2018 | ||||||||||
| Funder: | Australian Research Council (ARC), Fiji. Ministry of iTaukei Affairs |
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