Demethoxycurcumin-Metal Complexes : Fragmentation and Comparison with Curcumin-Metal Complexes, as Studied by ESI-MSMS
Joint Authors
Hoffmann, Marcin
Śniecikowska, Lidia
Ostrowski, Wojciech
Frański, Rafał
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-08-29
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Two questions are asked: the first is if the lack/presence of methoxyl moiety at aromatic ring essentially affects the stability of curcuminoid-metal complexes, and the second is if it is possible that in the metal complexes one of the possible demethoxycurcumin structures predominates.
To answer the first question, the ESI-MS/MS spectra were taken of ions containing demethoxycurcumin, curcumin, and metal cation (e.g., ion [dCurc + Curc-H + Pb]+), and in order to answer the second question the ESI-MS/MS spectra were recorded of ions containing demethoxycurcumin and metal cation (e.g., ion [dCurc-H + Zn]+).
An interpretation of the mass spectra has indicated that (i) for some metals, curcumin-metal complexes are more stable than demethoxycurcumin-metal complexes and for some metals vice versa, and (ii) in demethoxycurcumin-metal complexes structure B1 [(1E,4Z,6E)-5-hydroxy-7-(4-hydroxy-3-methoxyphenyl)-1-(4-hydroxyphenyl)hepta-1,4,6-trien-3-one] is more stable than structure B2 [(1E,4Z,6E)-5-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,4,6-trien-3-one].
American Psychological Association (APA)
Ostrowski, Wojciech& Śniecikowska, Lidia& Hoffmann, Marcin& Frański, Rafał. 2013. Demethoxycurcumin-Metal Complexes : Fragmentation and Comparison with Curcumin-Metal Complexes, as Studied by ESI-MSMS. Journal of Spectroscopy،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-495700
Modern Language Association (MLA)
Ostrowski, Wojciech…[et al.]. Demethoxycurcumin-Metal Complexes : Fragmentation and Comparison with Curcumin-Metal Complexes, as Studied by ESI-MSMS. Journal of Spectroscopy No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-495700
American Medical Association (AMA)
Ostrowski, Wojciech& Śniecikowska, Lidia& Hoffmann, Marcin& Frański, Rafał. Demethoxycurcumin-Metal Complexes : Fragmentation and Comparison with Curcumin-Metal Complexes, as Studied by ESI-MSMS. Journal of Spectroscopy. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-495700
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-495700