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Article: Rapid identification of gallotannins from Chinese galls by matrix-assisted laser desorption/ionization time-of-flight quadrupole ion trap mass spectrometry
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TitleRapid identification of gallotannins from Chinese galls by matrix-assisted laser desorption/ionization time-of-flight quadrupole ion trap mass spectrometry
 
AuthorsZhu, F1
Cai, YZ1
Xing, J2 3
Ke, J3
Zhan, Z2
Corke, H1
 
Issue Date2009
 
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0951-4198/
 
CitationRapid Communications In Mass Spectrometry, 2009, v. 23 n. 11, p. 1678-1682 [How to Cite?]
DOI: http://dx.doi.org/10.1002/rcm.4064
 
AbstractChinese gall, a conventional traditional Chinese medicine, contains high levels of gallotannins. A rapid method for direct analysis of the gallotannins without using any troublesome sample pretreatments was developed using matrix-assisted laser desorption/ionization time-of-flight quadrupole ion trap mass spectrometry (MALDI-QIT-TOF MS) to successfully identify the gallotannin components in the crude extract of Chinese galls within several minutes. The high quality of the MS and MS2 spectra acquired clearly showed that hydrolysable tannins in Chinese galls were identified as a series of the gallotannins with degrees of polymerization (DP) of 4-11 galloyl units. The MS2 data indicated that the identified gallotannins with DP of 4-7 galloyl units had clear fragmentation with loss of 1-5 galloyl units which were further deprived of 1-3 water moieties. This technique may be used for rapid evaluation and screening of hydrolysable tannins in medicinal plants.© 2009 John Wiley & Sons, Ltd.
 
ISSN0951-4198
2012 Impact Factor: 2.509
2012 SCImago Journal Rankings: 0.886
 
DOIhttp://dx.doi.org/10.1002/rcm.4064
 
ISI Accession Number IDWOS:000266724000017
 
ReferencesReferences in Scopus
 
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dc.contributor.authorZhu, F
 
dc.contributor.authorCai, YZ
 
dc.contributor.authorXing, J
 
dc.contributor.authorKe, J
 
dc.contributor.authorZhan, Z
 
dc.contributor.authorCorke, H
 
dc.date.accessioned2010-05-31T04:15:46Z
 
dc.date.available2010-05-31T04:15:46Z
 
dc.date.issued2009
 
dc.description.abstractChinese gall, a conventional traditional Chinese medicine, contains high levels of gallotannins. A rapid method for direct analysis of the gallotannins without using any troublesome sample pretreatments was developed using matrix-assisted laser desorption/ionization time-of-flight quadrupole ion trap mass spectrometry (MALDI-QIT-TOF MS) to successfully identify the gallotannin components in the crude extract of Chinese galls within several minutes. The high quality of the MS and MS2 spectra acquired clearly showed that hydrolysable tannins in Chinese galls were identified as a series of the gallotannins with degrees of polymerization (DP) of 4-11 galloyl units. The MS2 data indicated that the identified gallotannins with DP of 4-7 galloyl units had clear fragmentation with loss of 1-5 galloyl units which were further deprived of 1-3 water moieties. This technique may be used for rapid evaluation and screening of hydrolysable tannins in medicinal plants.© 2009 John Wiley & Sons, Ltd.
 
dc.description.natureLink_to_subscribed_fulltext
 
dc.identifier.citationRapid Communications In Mass Spectrometry, 2009, v. 23 n. 11, p. 1678-1682 [How to Cite?]
DOI: http://dx.doi.org/10.1002/rcm.4064
 
dc.identifier.doihttp://dx.doi.org/10.1002/rcm.4064
 
dc.identifier.epage1682
 
dc.identifier.hkuros158394
 
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dc.identifier.issn0951-4198
2012 Impact Factor: 2.509
2012 SCImago Journal Rankings: 0.886
 
dc.identifier.issue11
 
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dc.identifier.pmid19408344
 
dc.identifier.scopuseid_2-s2.0-66149179013
 
dc.identifier.spage1678
 
dc.identifier.urihttp://hdl.handle.net/10722/60646
 
dc.identifier.volume23
 
dc.languageeng
 
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www.interscience.wiley.com/jpages/0951-4198/
 
dc.publisher.placeUnited Kingdom
 
dc.relation.ispartofRapid Communications in Mass Spectrometry
 
dc.relation.referencesReferences in Scopus
 
dc.rightsRapid Communications in Mass Spectrometry. Copyright © John Wiley & Sons Ltd.
 
dc.titleRapid identification of gallotannins from Chinese galls by matrix-assisted laser desorption/ionization time-of-flight quadrupole ion trap mass spectrometry
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong
  2. Shimadzu (Asia Pacific) Pte. Ltd.
  3. Republic Polytechnic