Rapid identification of triterpenoid sulfates and hydroxy fatty acids including two new constituents from Tydemania expeditionis by liquid chromatography-mass spectrometry

Zhang, J.L. and Kubanek, J. and Hay, M.E. and Aalbersberg, William G.L. and Jiang, R.W. (2011) Rapid identification of triterpenoid sulfates and hydroxy fatty acids including two new constituents from Tydemania expeditionis by liquid chromatography-mass spectrometry. Journal of Mass Spectrometry, 46 (9). pp. 908-916. ISSN 1076-5174

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Abstract

Tydemania expeditionis Weber–van Bosse (Udoteaceae) is a weakly calcified green alga. In the present paper, liquid chromatography coupled with photodiode array detection and electrospray mass spectrometry was developed to identify the fingerprint components. A total of four triterpenoid sulfates and three hydroxy fatty acids in the ethyl acetate fraction of the crude extract were structurally characterized on the basis of retention time, online UV spectrum, and mass fragmentation pattern. Furthermore, a detailed liquid chromatography–mass spectrometry analysis revealed two new hydroxy fatty acids, which were then prepared and characterized by extensive nuclear magnetic resonance (NMR) analyses. The proposed method provides a scientific and technical platform for the rapid identification of triterpenoid sulfates and hydroxy fatty acids in similar marine algae and terrestrial plants.

Item Type:	Journal Article
Subjects:	Q Science > Q Science (General)
Divisions:	Faculty of Science, Technology and Environment (FSTE) > Institute of Applied Science
Depositing User:	Ms Shalni Sanjana
Date Deposited:	25 Jun 2011 07:44
Last Modified:	29 Aug 2012 04:55
URI:	https://repository.usp.ac.fj/id/eprint/4831

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