Exploring concentration, surface area and surface chemistry effects of colloidal aggregates on fat crystal networks
We study the effects of concentration, surface area and surface chemistry of fractal fumed silica aggregates on a model fat-structured food system. We use oscillatory stress sweep rheology to determine the storage modulus, the length of the linear viscoelastic region and the rate of network breakdow...
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| Format: | Journal article |
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Royal Society of Chemistry
2017
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| _version_ | 1826302254245740544 |
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| author | Chauhan, R Dullens, R Velikov, K Aarts, D |
| author_facet | Chauhan, R Dullens, R Velikov, K Aarts, D |
| author_sort | Chauhan, R |
| collection | OXFORD |
| description | We study the effects of concentration, surface area and surface chemistry of fractal fumed silica aggregates on a model fat-structured food system. We use oscillatory stress sweep rheology to determine the storage modulus, the length of the linear viscoelastic region and the rate of network breakdown after the linear region. Differential scanning calorimetry shows that silica is not acting as a seed for nucleation and that the melting profiles for samples with silica are not significantly different. We interpret these results in terms of hydrogen bonding between the silica aggregates and its role in strengthening the fat crystal networks. |
| first_indexed | 2024-03-07T05:44:46Z |
| format | Journal article |
| id | oxford-uuid:e6daa90c-85b2-45a8-acf7-be9cb2a2efa1 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T05:44:46Z |
| publishDate | 2017 |
| publisher | Royal Society of Chemistry |
| record_format | dspace |
| spelling | oxford-uuid:e6daa90c-85b2-45a8-acf7-be9cb2a2efa12022-03-27T10:33:56ZExploring concentration, surface area and surface chemistry effects of colloidal aggregates on fat crystal networksJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e6daa90c-85b2-45a8-acf7-be9cb2a2efa1Symplectic Elements at OxfordRoyal Society of Chemistry2017Chauhan, RDullens, RVelikov, KAarts, DWe study the effects of concentration, surface area and surface chemistry of fractal fumed silica aggregates on a model fat-structured food system. We use oscillatory stress sweep rheology to determine the storage modulus, the length of the linear viscoelastic region and the rate of network breakdown after the linear region. Differential scanning calorimetry shows that silica is not acting as a seed for nucleation and that the melting profiles for samples with silica are not significantly different. We interpret these results in terms of hydrogen bonding between the silica aggregates and its role in strengthening the fat crystal networks. |
| spellingShingle | Chauhan, R Dullens, R Velikov, K Aarts, D Exploring concentration, surface area and surface chemistry effects of colloidal aggregates on fat crystal networks |
| title | Exploring concentration, surface area and surface
chemistry effects of colloidal aggregates on fat
crystal networks |
| title_full | Exploring concentration, surface area and surface
chemistry effects of colloidal aggregates on fat
crystal networks |
| title_fullStr | Exploring concentration, surface area and surface
chemistry effects of colloidal aggregates on fat
crystal networks |
| title_full_unstemmed | Exploring concentration, surface area and surface
chemistry effects of colloidal aggregates on fat
crystal networks |
| title_short | Exploring concentration, surface area and surface
chemistry effects of colloidal aggregates on fat
crystal networks |
| title_sort | exploring concentration surface area and surface chemistry effects of colloidal aggregates on fat crystal networks |
| work_keys_str_mv | AT chauhanr exploringconcentrationsurfaceareaandsurfacechemistryeffectsofcolloidalaggregatesonfatcrystalnetworks AT dullensr exploringconcentrationsurfaceareaandsurfacechemistryeffectsofcolloidalaggregatesonfatcrystalnetworks AT velikovk exploringconcentrationsurfaceareaandsurfacechemistryeffectsofcolloidalaggregatesonfatcrystalnetworks AT aartsd exploringconcentrationsurfaceareaandsurfacechemistryeffectsofcolloidalaggregatesonfatcrystalnetworks |