| Identification of betalains from yellow beet (Beta vulgaris L.) and cactus pear [Opuntia ficus-indica (L.) Mill.] by high-performance liquid chromatography-electrospray ionization mass spectrometry. | |
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MedLine Citation:
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PMID: 11929288 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Betaxanthins, the yellow-orange water-soluble pigments from yellow beet (Beta vulgaris ssp. vulgaris cv. Bejo Zaden) and cactus pear (Opuntia ficus-indica cv. Gialla) have been investigated using an HPLC system compatible with mass spectrometry. Five novel betaxanthins were found and characterized as the immonium adducts of betalamic acid with serine, gamma-aminobutyric acid, valine, isoleucine, and phenylalanine. To enable concentration of betalain samples, desalting was performed by solid-phase extraction. With this technique, betacyanins could be separated from the betaxanthins using the pH-dependent retention characteristics of red and yellow betalains. The betaxanthin fraction was taken for the preparation of betalamic acid as a precursor for semisynthetic standards. The HPLC method was applied to yellow beet and cactus pear, revealing a more complex betalain profile than described earlier, thus proving its suitability for screening of betaxanthin-containing plants as potential sources for natural food colors. |
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Authors:
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Florian C Stintzing; Andreas Schieber; Reinhold Carle |
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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: Journal of agricultural and food chemistry Volume: 50 ISSN: 0021-8561 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2002 Apr |
Date Detail:
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Created Date: 2002-04-03 Completed Date: 2002-05-29 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 2302-7 Citation Subset: IM |
Affiliation:
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Institute of Food Technology, Section Plant Foodstuff Technology, Hohenheim University, Garbenstrasse 25, D-70599 Stuttgart, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Beta vulgaris
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chemistry* Betacyanins Betalains Chromatography, High Pressure Liquid* Food Coloring Agents Indoles / isolation & purification Opuntia / chemistry* Pigments, Biological / isolation & purification Pyridines / isolation & purification Quaternary Ammonium Compounds / analysis*, isolation & purification Spectrometry, Mass, Electrospray Ionization* |
| Chemical | |
Reg. No./Substance:
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0/Betacyanins; 0/Food Coloring Agents; 0/Indoles; 0/Pigments, Biological; 0/Pyridines; 0/Quaternary Ammonium Compounds; 18766-66-0/betalamic acid; 37279-84-8/Betalains; 7659-95-2/betanin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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