| Study of the mass spectrometric behaviors of anthocyanins in negative ionization mode and its applications for characterization of anthocyanins and non-anthocyanin polyphenols. | |
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MedLine Citation:
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PMID: 22467463 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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RATIONALE: Traditionally, anthocyanin analysis in mass spectrometry is carried out in the positive ionization mode only. A study of the mass spectrometric behaviors of anthocyanins in the negative ionization mode revealed interesting characteristics that was not previously reported. It can be used to differentiate anthocyanins from other non-anthocyanin polyphenols. METHODS: An ultra-high-performance liquid chromatography with high-resolution mass spectrometry (U-HPLC/HRMS) method was developed. The method used multiple-stage mass fragmentation in both the negative and positive ion modes. The whole cycle time of the new method is 1.8 s for two full scans and six data-dependent scans. RESULTS: The new strategy found, in the negative ionization mode, a series of characteristic ions, e.g. [M-2H](-) , [M-2H + H(2) O](-) , formic acid adducts, and doubly charged ions were observed for the MS analysis of anthocyanins. The characteristic ions can be used for identification and differentiation of anthocyanins and non-anthocyanin phenolic compounds. Comprehensive studies were performed on the differentiation of anthocyanins and non-anthocyanin polyphenols in blueberry (Vaccinium cyanococcus), Hongcaitai (Brassica compestris L. var. purpurea Bailey), and red radish (Raphanus sativus var. longipinnatus 'Shinrimei'). CONCLUSIONS: The data generated from a single LC run enables rapid and reliable differentiation and identification of anthocyanins and non-anthocyanins in botanicals and foods. Published 2012. This article is a US Government work and is in the public domain in the USA. |
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Authors:
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Jianghao Sun; Long-Ze Lin; Pei Chen |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Rapid communications in mass spectrometry : RCM Volume: 26 ISSN: 1097-0231 ISO Abbreviation: Rapid Commun. Mass Spectrom. Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-04-02 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8802365 Medline TA: Rapid Commun Mass Spectrom Country: England |
Other Details:
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Languages: eng Pagination: 1123-33 Citation Subset: IM |
Copyright Information:
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Published 2012. This article is a US Government work and is in the public domain in the USA. |
Affiliation:
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U.S. Department of Agriculture, Agricultural Research Service, Beltsville Human Nutrition Research Center, Food Composition and Methods Development Laboratory, Beltsville, MD, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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