Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends
The effects of lipase-catalyzed interesterification (IE) on changes in the chemical composition of palm oil (PO), palm kernel oil (PKO) and their binary blends at 3:1, 1:1 and 1:3 (w/w) ratios, using both 1,3 specific Rhizomucor miehei, (Lipozyme™) and non-specific Pseudomonas sp. lipases were evalu...
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| Formato: | Artigo |
| Idioma: | English English |
| Publicado: |
Copyright © 2005 Elsevier Ltd
2007
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| Acceso en liña: | http://psasir.upm.edu.my/id/eprint/7115/1/Interpretation%20of%20triacylglycerol%20profiles%20of%20palm%20oil.pdf |
| _version_ | 1825944144632086528 |
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| author | Chen, Chit Way Chong, Chiew Let Mohd Ghazali, Hasanah Lai, Oi Ming |
| author_facet | Chen, Chit Way Chong, Chiew Let Mohd Ghazali, Hasanah Lai, Oi Ming |
| author_sort | Chen, Chit Way |
| collection | UPM |
| description | The effects of lipase-catalyzed interesterification (IE) on changes in the chemical composition of palm oil (PO), palm kernel oil (PKO) and their binary blends at 3:1, 1:1 and 1:3 (w/w) ratios, using both 1,3 specific Rhizomucor miehei, (Lipozyme™) and non-specific Pseudomonas sp. lipases were evaluated. IE of the native PO and PKO showed very distinct chemical composition changes. Catalysis of PO, using both lipases, caused synthesis of more medium and long chain triacylglycerols (TAG), with MMM/OLL, MMP, OOO and PPP (M, myristic acid; O, oleic acid; L, linoleic acid; P, palmitic acid) increasing in concentration. In contrast, IE of PKO resulted in the formation of more short and medium chain TAG, with LaLaO and LaMO (La, lauric acid; C, capric acid) experiencing noteworthy increments. Both Rhizomucor miehei and Pseudomonas sp. lipases showed high affinity in hydrolyzing PO fatty acids, resulting in high TAG losses and formation of high percentages of partial glycerides while these lipases were found to enhance the synthesis process in IE of PKO. Catalysis of the three binary blends caused similar TAG compositional changes where the synthesis process focussed on the medium chain TAG, while hydrolysis was observed in the short and long chain TAG that showed corresponding decreases. Catalysis of the three blends was influenced by the major fraction of these blends. Among these blends, PO: PKO at a 1:1 ratio exhibited the highest degree of IE. The diversity and quantity of available TAG are postulated to be the main causes of the different catalytic activities in these binary blends with Pseudomonas sp. lipase showing a higher degree and rate of IE than R. miehei.
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| first_indexed | 2024-03-06T07:11:16Z |
| format | Article |
| id | upm.eprints-7115 |
| institution | Universiti Putra Malaysia |
| language | English English |
| last_indexed | 2024-03-06T07:11:16Z |
| publishDate | 2007 |
| publisher | Copyright © 2005 Elsevier Ltd |
| record_format | dspace |
| spelling | upm.eprints-71152015-11-27T01:34:46Z http://psasir.upm.edu.my/id/eprint/7115/ Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends Chen, Chit Way Chong, Chiew Let Mohd Ghazali, Hasanah Lai, Oi Ming The effects of lipase-catalyzed interesterification (IE) on changes in the chemical composition of palm oil (PO), palm kernel oil (PKO) and their binary blends at 3:1, 1:1 and 1:3 (w/w) ratios, using both 1,3 specific Rhizomucor miehei, (Lipozyme™) and non-specific Pseudomonas sp. lipases were evaluated. IE of the native PO and PKO showed very distinct chemical composition changes. Catalysis of PO, using both lipases, caused synthesis of more medium and long chain triacylglycerols (TAG), with MMM/OLL, MMP, OOO and PPP (M, myristic acid; O, oleic acid; L, linoleic acid; P, palmitic acid) increasing in concentration. In contrast, IE of PKO resulted in the formation of more short and medium chain TAG, with LaLaO and LaMO (La, lauric acid; C, capric acid) experiencing noteworthy increments. Both Rhizomucor miehei and Pseudomonas sp. lipases showed high affinity in hydrolyzing PO fatty acids, resulting in high TAG losses and formation of high percentages of partial glycerides while these lipases were found to enhance the synthesis process in IE of PKO. Catalysis of the three binary blends caused similar TAG compositional changes where the synthesis process focussed on the medium chain TAG, while hydrolysis was observed in the short and long chain TAG that showed corresponding decreases. Catalysis of the three blends was influenced by the major fraction of these blends. Among these blends, PO: PKO at a 1:1 ratio exhibited the highest degree of IE. The diversity and quantity of available TAG are postulated to be the main causes of the different catalytic activities in these binary blends with Pseudomonas sp. lipase showing a higher degree and rate of IE than R. miehei. Copyright © 2005 Elsevier Ltd 2007 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7115/1/Interpretation%20of%20triacylglycerol%20profiles%20of%20palm%20oil.pdf Chen, Chit Way and Chong, Chiew Let and Mohd Ghazali, Hasanah and Lai, Oi Ming (2007) Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends. Food Chemistry, 100 (1). pp. 178-191. ISSN 0308-8146 http://dx.doi.org/10.1016/j.foodchem.2005.09.044 10.1016/j.foodchem.2005.09.044 English |
| spellingShingle | Chen, Chit Way Chong, Chiew Let Mohd Ghazali, Hasanah Lai, Oi Ming Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends |
| title | Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends |
| title_full | Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends |
| title_fullStr | Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends |
| title_full_unstemmed | Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends |
| title_short | Interpretation of triacylglycerol profiles of palm oil, palm kernel oil and their binary blends |
| title_sort | interpretation of triacylglycerol profiles of palm oil palm kernel oil and their binary blends |
| url | http://psasir.upm.edu.my/id/eprint/7115/1/Interpretation%20of%20triacylglycerol%20profiles%20of%20palm%20oil.pdf |
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