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Article: Rapid identification of betacyanins from Amaranthus tricolor, Gomphrena globosa, and Hylocereus polyrhizus by matrix-assisted laser desorption/ ionization quadrupole ion trap time-of-flight mass spectrometry (MALDI-QIT-TOF MS)

TitleRapid identification of betacyanins from Amaranthus tricolor, Gomphrena globosa, and Hylocereus polyrhizus by matrix-assisted laser desorption/ ionization quadrupole ion trap time-of-flight mass spectrometry (MALDI-QIT-TOF MS)
Authors
KeywordsAmaranth
Amaranthus tricolor, gomphrena globosa
Betacyanins
Betalains
Food colorants
HPLC
Hylocereus polyrhizus
Low molecular weight compounds
MALDI-QIT-TOF MS
Pitaya
Issue Date2006
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jafcau
Citation
Journal Of Agricultural And Food Chemistry, 2006, v. 54 n. 18, p. 6520-6526 How to Cite?
AbstractNatural betacyanins have attracted great attention as food colorants and potential antioxidants. Matrix-assisted laser desorption/ionization quadrupole ion trap time-of-flight mass spectrometry (MALDI-QIT-TOF MS) is a new and powerful technique for the identification of low molecular weight compounds. This study is the first to employ MALDI-QIT-TOF MS to rapidly identify, within a few minutes, a great number of betacyanins in crude extracts from Amaranthus tricolor seedlings, Gomphrena globosa flowers, and Hylocereus polyrhizus fruits. The fresh crude extract samples without any purification were directly used for MALDI-QIT-TOF MS analysis with 2,5-dihydroxybenzoic acid as a matrix. The MS 2 and MS 3 spectrometric data acquired could provide important characteristic information for structural elucidation of the betacyanins. Fourteen free and acylated betacyanins, belonging to amaranthin-type, betanin-type, and gomphrenin-type betacyanins, respectively, were identified. However, the related isomers should be differentiated with the aid of HPLC. © 2006 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/68417
ISSN
2015 Impact Factor: 2.857
2015 SCImago Journal Rankings: 1.246
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorCai, YZen_HK
dc.contributor.authorXing, Jen_HK
dc.contributor.authorSun, Men_HK
dc.contributor.authorCorke, Hen_HK
dc.date.accessioned2010-09-06T06:04:26Z-
dc.date.available2010-09-06T06:04:26Z-
dc.date.issued2006en_HK
dc.identifier.citationJournal Of Agricultural And Food Chemistry, 2006, v. 54 n. 18, p. 6520-6526en_HK
dc.identifier.issn0021-8561en_HK
dc.identifier.urihttp://hdl.handle.net/10722/68417-
dc.description.abstractNatural betacyanins have attracted great attention as food colorants and potential antioxidants. Matrix-assisted laser desorption/ionization quadrupole ion trap time-of-flight mass spectrometry (MALDI-QIT-TOF MS) is a new and powerful technique for the identification of low molecular weight compounds. This study is the first to employ MALDI-QIT-TOF MS to rapidly identify, within a few minutes, a great number of betacyanins in crude extracts from Amaranthus tricolor seedlings, Gomphrena globosa flowers, and Hylocereus polyrhizus fruits. The fresh crude extract samples without any purification were directly used for MALDI-QIT-TOF MS analysis with 2,5-dihydroxybenzoic acid as a matrix. The MS 2 and MS 3 spectrometric data acquired could provide important characteristic information for structural elucidation of the betacyanins. Fourteen free and acylated betacyanins, belonging to amaranthin-type, betanin-type, and gomphrenin-type betacyanins, respectively, were identified. However, the related isomers should be differentiated with the aid of HPLC. © 2006 American Chemical Society.en_HK
dc.languageengen_HK
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/journal/jafcauen_HK
dc.relation.ispartofJournal of Agricultural and Food Chemistryen_HK
dc.subjectAmaranthen_HK
dc.subjectAmaranthus tricolor, gomphrena globosaen_HK
dc.subjectBetacyaninsen_HK
dc.subjectBetalainsen_HK
dc.subjectFood colorantsen_HK
dc.subjectHPLCen_HK
dc.subjectHylocereus polyrhizusen_HK
dc.subjectLow molecular weight compoundsen_HK
dc.subjectMALDI-QIT-TOF MSen_HK
dc.subjectPitayaen_HK
dc.subject.meshAmaranthaceae - chemistry-
dc.subject.meshAmaranthus - chemistry-
dc.subject.meshBetacyanins - analysis-
dc.subject.meshCactaceae - chemistry-
dc.subject.meshSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization - methods-
dc.titleRapid identification of betacyanins from Amaranthus tricolor, Gomphrena globosa, and Hylocereus polyrhizus by matrix-assisted laser desorption/ ionization quadrupole ion trap time-of-flight mass spectrometry (MALDI-QIT-TOF MS)en_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-8561&volume=54&issue=18&spage=6520&epage=6526&date=6&atitle=Rapid+identification+of+betacyanins+from+Amaranthus+tricolor,+Gomphrena+globosa,+and+Hylocereus+polyrhizus+by+matrix-assisted+laser+desorption/ionization+quadrupole+ion+trap+time-of-flight+mass+spectrometry+(MALDI-QIT-TOF+MS)en_HK
dc.identifier.emailCai, YZ: yzcai@hkucc.hku.hken_HK
dc.identifier.emailSun, M: meisun@hkucc.hku.hken_HK
dc.identifier.emailCorke, H: harold@hku.hken_HK
dc.identifier.authorityCai, YZ=rp00661en_HK
dc.identifier.authoritySun, M=rp00779en_HK
dc.identifier.authorityCorke, H=rp00688en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/jf0609983en_HK
dc.identifier.pmid16939305-
dc.identifier.scopuseid_2-s2.0-33748911624en_HK
dc.identifier.hkuros122375en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33748911624&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume54en_HK
dc.identifier.issue18en_HK
dc.identifier.spage6520en_HK
dc.identifier.epage6526en_HK
dc.identifier.isiWOS:000240129700007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridCai, YZ=8684149300en_HK
dc.identifier.scopusauthoridXing, J=37162498100en_HK
dc.identifier.scopusauthoridSun, M=7403181447en_HK
dc.identifier.scopusauthoridCorke, H=7007102942en_HK

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