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PhytoChemia Acta

Research notes

Underpressure: the impact of vacuum distillation on essential oil quality

21 October 2019

Benoit Roger (Ph. D.), Hubert Marceau (B. Sc., chemist), Alexis St-Gelais (M. Sc., chemist)   Have you ever tried cooking pasta atop a high mountain? OK, this is a weird introduction, but you’ll see the link. Everybody ‘’knows’’ that (pure) water freezes at 0 °C and boils at 100 °C and in everyday life, this is […]

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An Insight into Labrador Tea Chemotypes (Poster)

13 September 2019

Alexis St-Gelais (M. Sc., chimiste), Benoit Roger, Kim Desrosiers, Hubert Marceau This poster (awarded a Poster Prize) was presented to the scientific community during the 50th International Symposium on Essential Oils in Vienna, Austria, on September 9th-11th 2019. Click here to see the poster as a PDF. Thanks to Lavinia Alexandru for the photo. Entitled Chemometric […]

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First Inventory of Pests and Diseases in Cannabis and Hemp Crops in Canada

21 September 2018

Laurie Caron, M.Sc. Chimiste In collaboration with Biopterre, the Institut de Recherche en Biologie Végétale and the University of Moncton, Phytochemia is proud to present a new research project on the identification of the pests ans diseases affecting the production of cannabis and hemp in Canada.  The main objective of this project is to generate the […]

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Botanica 2018 – Testing the water: the rewards and challenges of hydrosol analysis

4 September 2018

Here is the lecture that we have presented at Botanica 2018 :  The aromatherapy industry interest in hydrosol has been growing in the recent years. As more practionners and enthousiast try to include them into their regiment, it gets more and more important to know their chemicals composition. Sadly, hydrosol did not get the same […]

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Synthetic Methyl Salicylate and You

12 June 2017

Alexis St-Gelais, chimiste Essential oils are worth quite a lot of money. It so happens that, in order to boost profits, unscrupulous people alter oils in various ways. This “Adulterants and you” series is there to introduce you to some of the adulterations we encounter. This is because not all of them are necessarily obvious, […]

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How Much Agarwood in your Agarwood?

5 June 2017

Hubert Marceau, Chimiste, B. Sc. Agarwood is an oil with a very specific odor profile. Almost no two oils will have the same exact smell: sometimes it is leathery, other time smoky, some even have fruity notes and other lots can smell a bit cheesy. The reason for that come from how it is produced. Agarwood is […]

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Caffeine, an early morning subject !

9 May 2017

Dany Massé, Chimiste, B.Sc. May you drink it black, espresso or with cream, almost everyone have his own recipe for a tasty coffee. Whatever your style, there is one question that people always ask: is there more caffeine in an espresso or in an ordinary filter coffee? Ask around and most people will have some […]

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Published Paper: the Scent of Indian Celery

21 October 2016

Alexis St-Gelais, M. Sc., chimiste The flora of North America is still lush with aromatic plants that have not (yet) been studied for their volatile compounds. One of these blindspots was, up to recently, a plant commonly called Indian celery (figure 1), as well as cow parsnip, which is found throughout the continent. This species (Heracleum […]

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Dieugenol: An Ageing Product in Clove Basil Hydrosol

25 February 2016

Research note – Alexis St-Gelais, M. Sc., chimiste The clove basil (Ocimum gratissimum) comes for Africa. Upon distillation, it yields an essential oil containing mainly eugenol and β-caryophyllene. Circle H Institute is an organization dedicated to furthering the knowledge about hydrosols. Its manager, Ann Harman, contacted us after performing clove basil hydrodistillation using a copper apparatus. After […]

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Volatile constituents of American willow male flowers

24 July 2015

Alexis St-Gelais – Research Notes The hexane extract (concrete) of young male flowers of American willow (Salix discolor Muhlenberg) was analysed by gas chromatography. Beside the waxy compounds, the main detected constituents are floral-scented alcohols and salicylaldehyde. The results are a good example of the usefulness of processing concretes into absolutes. In our region, one of […]

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