| Analysis of carotenoid composition in petals of calendula (Calendula officinalis L.). | |
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MedLine Citation:
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PMID: 16306694 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Nineteen carotenoids were identified in extracts of petals of orange- and yellow-flowered cultivars of calendula (Calendula officinalis L.). Ten carotenoids were unique to orange-flowered cultivars. The UV-vis absorption maxima of these ten carotenoids were at longer wavelengths than that of flavoxanthin, the main carotenoid of calendula petals, and it is clear that these carotenoids are responsible for the orange color of the petals. Six carotenoids had a cis structure at C-5 (C-5'), and it is conceivable that these (5Z)-carotenoids are enzymatically isomerized at C-5 in a pathway that diverges from the main carotenoid biosynthesis pathway. Among them, (5Z,9Z)-lycopene (1), (5Z,9Z,5'Z,9'Z)-lycopene (3), (5'Z)-gamma-carotene (4), and (5'Z,9'Z)-rubixanthin (5) has never before been identified. Additionally, (5Z,9Z,5'Z)-lycopene (2) has been reported only as a synthesized compound. |
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Authors:
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Sanae Kishimoto; Takashi Maoka; Katsuhiko Sumitomo; Akemi Ohmiya |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Bioscience, biotechnology, and biochemistry Volume: 69 ISSN: 0916-8451 ISO Abbreviation: Biosci. Biotechnol. Biochem. Publication Date: 2005 Nov |
Date Detail:
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Created Date: 2005-11-24 Completed Date: 2006-02-14 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 9205717 Medline TA: Biosci Biotechnol Biochem Country: Japan |
Other Details:
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Languages: eng Pagination: 2122-8 Citation Subset: IM |
Affiliation:
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National Institute of Floricultural Science, Ibaraki, Japan. sanae@affrc.go.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Calendula
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chemistry* Carotenoids / analysis*, chemistry Color Flowers / chemistry* Molecular Structure Plant Extracts / analysis Spectrophotometry, Ultraviolet Stereoisomerism |
| Chemical | |
Reg. No./Substance:
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0/Plant Extracts; 36-88-4/Carotenoids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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