Nuclear magnetic resonance analysis of carotenoids from the burgundy plumage of the Pompadour Cotinga (Xipholena punicea)
Copyright © 2013 Elsevier Inc. All rights reserved..
Previous analysis of carotenoids extracted from the burgundy plumage of the Pompadour Cotinga (Xipholena punicea) revealed six novel keto-carotenoid pigments with methoxyl groups in the C3-position of one or both β-rings. High performance liquid chromatography (HPLC), mass spectrometry, chemical analysis and, in some instances (1)H NMR spectroscopy were employed to determine the structures of the molecules. Further analysis by NMR was precluded due to lack of material. The recent acquisition of multiple feathers from X. punicea specimens has made it possible to complete this work using correlated homonuclear spectroscopy (COSY), nuclear overhauser effect spectroscopy (NOESY) and (1)H NMR. These new data conclusively confirm the structures of the six methoxy-carotenoids suggested by the earlier work. In addition, the resonance positions of the protons from the novel 3-methoxy-4-keto-β-ring and 2,3-didehydro-3-methoxy-4-keto-β-ring moieties are reported here for the first time.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2013 |
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| Erschienen: |
2013 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:539 |
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| Enthalten in: |
Archives of biochemistry and biophysics - 539(2013), 2 vom: 15. Nov., Seite 133-41 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
LaFountain, Amy M [VerfasserIn] |
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| Links: |
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| Themen: |
36-88-4 |
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| Anmerkungen: |
Date Completed 14.01.2014 Date Revised 04.11.2013 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.abb.2013.08.012 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM230532454 |
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| 245 | 1 | 0 | |a Nuclear magnetic resonance analysis of carotenoids from the burgundy plumage of the Pompadour Cotinga (Xipholena punicea) |
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| 500 | |a Date Revised 04.11.2013 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2013 Elsevier Inc. All rights reserved. | ||
| 520 | |a Previous analysis of carotenoids extracted from the burgundy plumage of the Pompadour Cotinga (Xipholena punicea) revealed six novel keto-carotenoid pigments with methoxyl groups in the C3-position of one or both β-rings. High performance liquid chromatography (HPLC), mass spectrometry, chemical analysis and, in some instances (1)H NMR spectroscopy were employed to determine the structures of the molecules. Further analysis by NMR was precluded due to lack of material. The recent acquisition of multiple feathers from X. punicea specimens has made it possible to complete this work using correlated homonuclear spectroscopy (COSY), nuclear overhauser effect spectroscopy (NOESY) and (1)H NMR. These new data conclusively confirm the structures of the six methoxy-carotenoids suggested by the earlier work. In addition, the resonance positions of the protons from the novel 3-methoxy-4-keto-β-ring and 2,3-didehydro-3-methoxy-4-keto-β-ring moieties are reported here for the first time | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Carotenoid identification | |
| 650 | 4 | |a Nuclear magnetic resonance | |
| 650 | 4 | |a Plumage pigmentation | |
| 650 | 7 | |a Carotenoids |2 NLM | |
| 650 | 7 | |a 36-88-4 |2 NLM | |
| 700 | 1 | |a Pacheco, Carlos |e verfasserin |4 aut | |
| 700 | 1 | |a Prum, Richard O |e verfasserin |4 aut | |
| 700 | 1 | |a Frank, Harry A |e verfasserin |4 aut | |
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