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Gel-like colloid starch solutions and the effect of high dispersed silica on their phase state were studied using the method ofliquid phase layered freezing-out with 1H NMR recording of unfrozen water signal. Interphase energy of “biopolymer-water†system was established to increase from 65 to 1...
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| Date: | 2005 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Publishing House ‘Akademperiodyka’ of the National Academy of Sciences of Ukraine; Institute for Problems of Cryobiology and Cryomedicine
2005
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| Subjects: | |
| Online Access: | https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1213 |
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| Journal Title: | Problems of Cryobiology and Cryomedicine |
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Problems of Cryobiology and Cryomedicine| Summary: | Gel-like colloid starch solutions and the effect of high dispersed silica on their phase state were studied using the method ofliquid phase layered freezing-out with 1H NMR recording of unfrozen water signal. Interphase energy of “biopolymer-water†system was established to increase from 65 to 194 J/g during starch gel dilution. Silica greatly affects the phase state of starch gel. Secondary structure of amylopectin chains is disintegrated in its presence and the stable “starch-silica†complexes are formed. Concentration of bound water in such complexes is lower than in starch gels and greatly depends on starch-silica concentration ratio. Interphasewater energy in “starch-water-silica†systems makes 21-103 J/g. |
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