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DC Field | Value | Language |
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dc.contributor.author | S. Iqbal, Mohammad | - |
dc.contributor.author | Wolf, Bettina | - |
dc.contributor.author | E.L. Williams, Huw | - |
dc.contributor.author | MacNaughtan, William | - |
dc.contributor.author | Massey, Shazma | - |
dc.date.accessioned | 2024-07-28T19:41:25Z | - |
dc.date.available | 2024-07-28T19:41:25Z | - |
dc.date.issued | 2017-07 | - |
dc.identifier.citation | Azeem, Shazma & MacNaughtan, William & Williams, Huw & Wolf, Bettina & Iqbal, Mohammad. (2017). A structural study of Acacia nilotica and Acacia modesta gums. Carbohydrate Polymers. 175. 10.1016/j.carbpol.2017.07.065. | en_US |
dc.identifier.other | DOI:10.1016/j.carbpol.2017.07.065 | - |
dc.identifier.uri | http://digitalrepository.fccollege.edu.pk/handle/123456789/2331 | - |
dc.description.abstract | tSuperficially similar carbohydrate polymers from similar sources can have dramatically different charac-teristics. This work seeks to examine the molecular properties responsible for these differences. Protonsresponsible for cross-polarization in the anomeric region of Acacia nilotica (AN) were replaced easily bydeuterium, but not for Acacia modesta (AM). Time constants describing the mobility and cross-polarizationtransfer were both found to be lower for AM. Variable contact time experiments showed poorer fits andmore heterogeneity for AN. Solution state HSQC experiments showed a lower number of environmentsin the anomeric region for AM. The relaxation time T2of AM solutions had a lower value consistent witha higher viscosity. The Tg of solutions were −14.5◦C AN and −18.5◦C AM. These results form a largelyself-consistent picture of molecular differences between AN and AM, suggesting a more compact butheterogeneous structure for AN and more branching in the case of AM. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | researchgate.net | en_US |
dc.subject | ArabinansAcacia modestaAcacia niloticaPolysaccharidesNMR spectroscopy | en_US |
dc.title | A structural study of Acacia nilotica and Acacia modesta gums | en_US |
dc.type | Article | en_US |
Appears in Collections: | Chemistry Department |
Files in This Item:
File | Description | Size | Format | |
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CP2017.pdf | 1.83 MB | Adobe PDF | View/Open |
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