Sonocrystallisation of Lactose in an Aqueous System
Although research on sonocrystallisation of lactose has been reported in the literature (yield and crystal size), the effect of ultrasound variables on nucleation and growth rate of lactose have not been studied. In this study, lactose crystallisation with ultrasound was compared with mechanical agi...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/25726 |
| _version_ | 1848751787866062848 |
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| author | Dincer, Tuna Zisu, B. Vallet, C. Jayasena, Vijay Palmer, M. Weeks, M. |
| author_facet | Dincer, Tuna Zisu, B. Vallet, C. Jayasena, Vijay Palmer, M. Weeks, M. |
| author_sort | Dincer, Tuna |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Although research on sonocrystallisation of lactose has been reported in the literature (yield and crystal size), the effect of ultrasound variables on nucleation and growth rate of lactose have not been studied. In this study, lactose crystallisation with ultrasound was compared with mechanical agitation using the induction time method at 22 °C. Ultrasound had a significant effect in reducing induction times and narrowing the metastable zone width but had no effect on individual crystal growth rate or morphology. A rapid decrease in induction time was observed up to 0.46 Wg-1 power density. Sonication up to 3 min decreased the induction time, but no further reduction was observed beyond 3 min. It was not possible to generate the nucleation rates achieved by sonication using agitation alone. 1 min sonication at 0.46 Wg1 power density followed by continuous stirring was found to be the optimum under the experimental conditions tested. |
| first_indexed | 2025-11-14T07:58:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-25726 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:58:17Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-257262017-10-02T02:28:15Z Sonocrystallisation of Lactose in an Aqueous System Dincer, Tuna Zisu, B. Vallet, C. Jayasena, Vijay Palmer, M. Weeks, M. Although research on sonocrystallisation of lactose has been reported in the literature (yield and crystal size), the effect of ultrasound variables on nucleation and growth rate of lactose have not been studied. In this study, lactose crystallisation with ultrasound was compared with mechanical agitation using the induction time method at 22 °C. Ultrasound had a significant effect in reducing induction times and narrowing the metastable zone width but had no effect on individual crystal growth rate or morphology. A rapid decrease in induction time was observed up to 0.46 Wg-1 power density. Sonication up to 3 min decreased the induction time, but no further reduction was observed beyond 3 min. It was not possible to generate the nucleation rates achieved by sonication using agitation alone. 1 min sonication at 0.46 Wg1 power density followed by continuous stirring was found to be the optimum under the experimental conditions tested. 2014 Journal Article http://hdl.handle.net/20.500.11937/25726 10.1016/j.idairyj.2013.10.001 Elsevier fulltext |
| spellingShingle | Dincer, Tuna Zisu, B. Vallet, C. Jayasena, Vijay Palmer, M. Weeks, M. Sonocrystallisation of Lactose in an Aqueous System |
| title | Sonocrystallisation of Lactose in an Aqueous System |
| title_full | Sonocrystallisation of Lactose in an Aqueous System |
| title_fullStr | Sonocrystallisation of Lactose in an Aqueous System |
| title_full_unstemmed | Sonocrystallisation of Lactose in an Aqueous System |
| title_short | Sonocrystallisation of Lactose in an Aqueous System |
| title_sort | sonocrystallisation of lactose in an aqueous system |
| url | http://hdl.handle.net/20.500.11937/25726 |