Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil
To date, all identification of palm carotenoids are tentative based on electronic absorption spectra, comparison of the elution sequence with past studies and authentic standards. This study reports the isolation of individual major isomers of palm carotenes using a semi-preparative C30 column. The...
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Malaysian Palm Oil Board
2005
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my.upm.eprints.441482023-12-25T11:12:48Z http://psasir.upm.edu.my/id/eprint/44148/ Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil Tay, Bonnie Yen Ping Ee, Gwendoline Cheng Lian To date, all identification of palm carotenoids are tentative based on electronic absorption spectra, comparison of the elution sequence with past studies and authentic standards. This study reports the isolation of individual major isomers of palm carotenes using a semi-preparative C30 column. The results of MS, 1 H NMR of four isolated peaks, assigned as Fraction 1 (a mixture of 13 and 13’ cis α-carotene), Fraction 2 ( 13 cis β-carotene), Fraction 3 (all trans α-carotene) and Fraction 4 (cis β-carotene) supported the identification of their structures. Malaysian Palm Oil Board 2005 Article PeerReviewed Tay, Bonnie Yen Ping and Ee, Gwendoline Cheng Lian (2005) Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil. Journal of Oil Palm Research, 17 (2). pp. 92-102. ISSN 2811-4701 http://jopr.mpob.gov.my/spectroscopic-identification-of-geometrical-isomers-of-and-carotenes-from-palm-oil/ |
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To date, all identification of palm carotenoids are tentative based on electronic absorption spectra, comparison of the elution sequence with past studies and authentic standards. This study reports the isolation of individual major isomers of palm carotenes using a semi-preparative C30 column. The results of MS, 1 H NMR of four isolated peaks, assigned as Fraction 1 (a mixture of 13 and 13’ cis α-carotene), Fraction 2 ( 13 cis β-carotene), Fraction 3 (all trans α-carotene) and Fraction 4 (cis β-carotene) supported the identification of their structures. |
| format |
Article |
| author |
Tay, Bonnie Yen Ping Ee, Gwendoline Cheng Lian |
| spellingShingle |
Tay, Bonnie Yen Ping Ee, Gwendoline Cheng Lian Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil |
| author_facet |
Tay, Bonnie Yen Ping Ee, Gwendoline Cheng Lian |
| author_sort |
Tay, Bonnie Yen Ping |
| title |
Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil |
| title_short |
Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil |
| title_full |
Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil |
| title_fullStr |
Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil |
| title_full_unstemmed |
Spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil |
| title_sort |
spectroscopic identification of geometrical isomers of α- and β-carotenes from palm oil |
| publisher |
Malaysian Palm Oil Board |
| publishDate |
2005 |
| url |
http://psasir.upm.edu.my/id/eprint/44148/ http://jopr.mpob.gov.my/spectroscopic-identification-of-geometrical-isomers-of-and-carotenes-from-palm-oil/ |
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