Optimisation of urea complexation by box-behnken design
Urea complexation is a method favoured by researchers to separate fatty acids based on molecular structure. In this study, effects of urea amount, crystallisation temperature and crystallisation time on the final products of urea complexation were examined. Box-Behnken Design (BBD) was employed to s...
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| Format: | Article |
| Language: | English |
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Universiti Kebangsaan Malaysia
2010
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| Online Access: | http://journalarticle.ukm.my/7408/ http://journalarticle.ukm.my/7408/1/01_Md_Yeaminhossain.pdf |
| _version_ | 1848811471382773760 |
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| author | Chin, Yoong Fei Jumat Salimon, Mamot Said, |
| author_facet | Chin, Yoong Fei Jumat Salimon, Mamot Said, |
| author_sort | Chin, Yoong Fei |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | Urea complexation is a method favoured by researchers to separate fatty acids based on molecular structure. In this study, effects of urea amount, crystallisation temperature and crystallisation time on the final products of urea complexation were examined. Box-Behnken Design (BBD) was employed to study the significance of these factors and the optimum conditions for the technique were predicted and verified. Results showed that urea-to-polyunsaturated fatty acid (PUFA) mole ratio and crystallisation temperature were two significant variables for enrichment of PUFA in non-urea complexing fraction (NUCF). In a 17-point experimental design, percentage of saturated fatty acid (SFA) was reduced almost entirely from initial 4.49%, monounsaturated fatty acid (MUFA) reduced from 57.02% to 41.32%, while PUFA increased from 33.49% to 53.87% in NUCF. Optimum condition for maximum PUFA and minimum SFA and MUFA contents was predicted at urea-to-PUFA mole ratio of 20, crystallisation temperature of –20 oC and crystallisation time of 29.67 h. |
| first_indexed | 2025-11-14T23:46:56Z |
| format | Article |
| id | oai:generic.eprints.org:7408 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T23:46:56Z |
| publishDate | 2010 |
| publisher | Universiti Kebangsaan Malaysia |
| recordtype | eprints |
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| spelling | oai:generic.eprints.org:74082016-12-14T06:43:59Z http://journalarticle.ukm.my/7408/ Optimisation of urea complexation by box-behnken design Chin, Yoong Fei Jumat Salimon, Mamot Said, Urea complexation is a method favoured by researchers to separate fatty acids based on molecular structure. In this study, effects of urea amount, crystallisation temperature and crystallisation time on the final products of urea complexation were examined. Box-Behnken Design (BBD) was employed to study the significance of these factors and the optimum conditions for the technique were predicted and verified. Results showed that urea-to-polyunsaturated fatty acid (PUFA) mole ratio and crystallisation temperature were two significant variables for enrichment of PUFA in non-urea complexing fraction (NUCF). In a 17-point experimental design, percentage of saturated fatty acid (SFA) was reduced almost entirely from initial 4.49%, monounsaturated fatty acid (MUFA) reduced from 57.02% to 41.32%, while PUFA increased from 33.49% to 53.87% in NUCF. Optimum condition for maximum PUFA and minimum SFA and MUFA contents was predicted at urea-to-PUFA mole ratio of 20, crystallisation temperature of –20 oC and crystallisation time of 29.67 h. Universiti Kebangsaan Malaysia 2010-10 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7408/1/01_Md_Yeaminhossain.pdf Chin, Yoong Fei and Jumat Salimon, and Mamot Said, (2010) Optimisation of urea complexation by box-behnken design. Sains Malaysiana, 39 (5). pp. 795-803. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol39num5_2010/contentsVol39num5_2010.html |
| spellingShingle | Chin, Yoong Fei Jumat Salimon, Mamot Said, Optimisation of urea complexation by box-behnken design |
| title | Optimisation of urea complexation by box-behnken design |
| title_full | Optimisation of urea complexation by box-behnken design |
| title_fullStr | Optimisation of urea complexation by box-behnken design |
| title_full_unstemmed | Optimisation of urea complexation by box-behnken design |
| title_short | Optimisation of urea complexation by box-behnken design |
| title_sort | optimisation of urea complexation by box-behnken design |
| url | http://journalarticle.ukm.my/7408/ http://journalarticle.ukm.my/7408/ http://journalarticle.ukm.my/7408/1/01_Md_Yeaminhossain.pdf |