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Rosalie Lamoureux

 

Master student

Department of Chemistry, Université Laval

Alexandre-Vachon Building
1045 avenue de la Médecine
Université Laval
Quebec, Canada
G1V 0A6

4186563613
rosalielamoureux@yahoo.ca

 

 


 
 
 

Projet de recherche

Characterization of natural products from northern bryophyte Racomitrium lanuginosum

Introduction

The current stresses encountered in Northern ecosystems force plants and lichens to generate a variety of secondary metabolites in response to those conditions. It is known that metabolites from northern plants have amazing structures and can have significant biological properties.

Objectives

The overarching goal of our research program is to demonstrate the molecular richness of northern organisms and the importance to better protect these sensitive ecosystems. Along these lines, we will present the results of a project that aims at identifying natural products (secondary metabolites) from Racomitrium lanuginosum, a bryophyte found in Nunavik. Noteworthy of mention, this bryophyte found in northern Canada has never been investigated phytochemically so far.

Study sites

Samples of the moss were collected from the surroundings of Kuujjuarapik-Whapmagoosti, Nunavik, in July 2019. It was in an environment full of lichens, mosses, and little bushes. The bryophyte was on rocks behind the research complex of CEN on small hills.

Material and methods

Extractions were performed with three different solvents. Purification of the extracts led to enriched fractions and to some pure compounds. Characterization led to the identification of some volatile and nonvolatile compounds that were identified by gaz chromatography-mass spectroscopy and liquid chromatography-mass spectroscopy. In addition, a formal identification of different metabolites purified was done using mass spectrometry and nuclear magnetic resonance spectroscopy.

References

  1. Klavina, L., et al. (2015). Chemical Composition Analysis, Antimicrobial Activity and Cytotoxicity Screening of Moss Extracts (Moss Phytochemistry)." Molecules 20(9): 17221-17243.
  2. Xiaowei, G. (2007). Chemistry of Bryophytes. Chemistry, National University of Singapore. Ph D.
  3. Faubert, J. (2013). Flore des bryophytes du Québec-Labrador: Mousses, première partie. Québec, Société québécoise de bryologie.

 
 
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