Title
Fast high resolution Orbitrap MS fingerprinting of the resin of H. taltalense Phil. from the Atacama Desert
Date Issued
01 July 2016
Access level
metadata only access
Resource Type
journal article
Author(s)
Simirgiotis M.
Bórquez J.
Schmeda-Hirschmann G.
Avendaño M.
Sepúlveda B.
Winterhalter P.
Universidad Andrés Bello
Publisher(s)
Elsevier B.V.
Abstract
Mass spectrometry has become the preferred analytical technique to characterize organic compounds in biological samples because of its sensitivity and selectivity. Hybrid UHPLC coupled to Orbitrap mass analyzer is an innovative state of the art technology that allows fast and accurate metabolomic analyses. In this work, Several flavanones, flavonols, and benzoic acid geranyl derivatives were rapidly identified in the resinous exudate of Heliotropium taltalense Phil., an endemic species growing in Paposo valley northern Chile, by means of ultrahigh resolution liquid chromatography Orbitrap MS-MS analysis (UHPLC-PDA-OT-MS). The relationship between the compounds detected and some biosynthetic pathways or mechanisms of formation of the geranyl derivatives are proposed. Furthermore, some common flavonoids and the new compound 3,4-dihydroxy-5-geranyl-benzoic acid were isolated from the plant resin using liquid-liquid high speed countercurrent chromatography (HPCCC). The new structure was elucidated by spectroscopic means (NMR).
Start page
159
End page
166
Volume
85
Language
English
OCDE Knowledge area
Protección y nutrición de las plantas
Scopus EID
2-s2.0-84959469547
Source
Industrial Crops and Products
ISSN of the container
09266690
Sponsor(s)
This work was financially supported by the National Fund of Scientific and Technological Development of Chile (Fondecyt No. 1140178 ) and Universidad Arturo Prat (Iquique, Chile; VRIIP0113-15 ). We also acknowledge Fondequip (grant EQM140002 ) for the funding to purchase the UHPLC Orbitrap MS equipment. We also thank to the SAG (Servicio Agrícola y Ganadero) and Corporación Nacional Forestal of Chile (CONAF) for allowing us to collect plants and fruits in the national protected areas of Northern Chile belonging to SNASPE (National System of Protected Areas of Chile).
Sources of information: Directorio de Producción Científica Scopus