Conyza canadensis : medicinal properties in alcoholic extraction

Conyza canadensis (Zèb-Kodenn, Lang-poul, Langue-de-poule, Herbe-à-coq-d ’Inde, Vergerette du Canada) — family Asteracées.

Scientific synonyms : Erigeron canadensis-L, E paniculatus-Lam, E strictus-DC, E pusillus-Nutt., Leptilon canadensis-Britt, L pusillum-Britt, senecio liliatus-Walt.

Recognised external sources linked to this monograph: French Pharmacopoeia.

This database documents alcoholic (ethanol) extractions of active substances. Our monograph currently lists 8 indications in alcoholic extraction for this species. The Lapo v2 catalogue records 44 scientific references for this species (full detail in the application).

Important — scientific references on this public page: only a short excerpt of each cited source is shown (selected abstract sentences), kept in the original language of the publication (most often English), without translation. These excerpts are not the full article text and are not a complete bibliography. The full reference records and complete monographic detail are available in the Lapo v2 application (free 30-day trial).

1. 1

   Bacterial infection: Bacillus cereus, B. licheniformis, B. subtilis, E. coli, Listeria monocytogenes, Pseudomonas aeruginosa, Salmonella enteritis, Staphylococcus aureus, Enterococcus faecalis

   Plant part used: leaf.

   Scientific references (short excerpts)

   Short excerpts only (not the full article). Full reference records are in the Lapo v2 application.

   • According to TUGCE ONBAS (2017)

     Excerpt coli,, Listeria monocytogenes, Pseudomonas aeruginosa, Salmonella enteritis, Staphylococcus aureus, Enterococcus faecalis. In this present study, the antimicrobial & antibiofilm activities of different extracts of Conyza canadensis-L (leaves) collected from Ankara (Turkey) & Rhododendron Ponticum-L (flowers), were evaluated against clinical isolated microorganisms as well as food borne such as Bacillus cereus, B.

   • According to Veres K (2012)

     Excerpt The antimicrobial activities of the oils were tested on Gram-positive (Enterococcus faecalis, Staphylococcus aureus & Streptococcus pyogenes), Gram-negative (Escherichia coli, Pseudomonas aeruginosa) bacteria, reference fungal strains & fungal strains isolated from patients (Candida, Cryptococcus, Trichophyton, Rhodotorula & Aspergillus) by agar disc diffusion and broth dilution methods. Essential oils from herbs & roots of Conyza canadensis (horseweed), collected in Hungary, were obtained by hydrodistillation.

   • According to PHUONG NB (2015)

     Excerpt canadensis extracted with ethyl acetate showed the highest antifungal activity against both tested fungal pathogens. canadensis which was extracted by different solvents including ethanol, ethyl acetate and hexane was examined by using agar well diffusion method & minimum inhibitory concentration method.

   • According to Curini M (2003)

     Excerpt Curini M et al, Composition and in vitro antifungal activity of essential oils of Erigeron canadensis & Myrtus communis from FRANCE, Chem of Nat Compounds, 39, (2) :191–4, 2003.

   • According to Shah NZ (2012)

     Excerpt Shah NZ et al, Antimicrobial & phytotoxic study of Conyza canadensis, Middle-East J Med Pl Res 1,63-7, 2012.

2. 2

   Bacterial infection: Escherichia coli, Bacillus subtilis, Shigella flexneri, Staphylococcus aureus, Pseudomonas aeruginosa, Salmonella typhi

   Plant part used: Whole plant.

   Scientific references (short excerpts)

   Short excerpts only (not the full article). Full reference records are in the Lapo v2 application.

   • According to TUGCE ONBAS (2017)

     Excerpt coli,, Listeria monocytogenes, Pseudomonas aeruginosa, Salmonella enteritis, Staphylococcus aureus, Enterococcus faecalis. In this present study, the antimicrobial & antibiofilm activities of different extracts of Conyza canadensis-L (leaves) collected from Ankara (Turkey) & Rhododendron Ponticum-L (flowers), were evaluated against clinical isolated microorganisms as well as food borne such as Bacillus cereus, B.

   • According to Veres K (2012)

     Excerpt The antimicrobial activities of the oils were tested on Gram-positive (Enterococcus faecalis, Staphylococcus aureus & Streptococcus pyogenes), Gram-negative (Escherichia coli, Pseudomonas aeruginosa) bacteria, reference fungal strains & fungal strains isolated from patients (Candida, Cryptococcus, Trichophyton, Rhodotorula & Aspergillus) by agar disc diffusion and broth dilution methods. Essential oils from herbs & roots of Conyza canadensis (horseweed), collected in Hungary, were obtained by hydrodistillation.

   • According to PHUONG NB (2015)

     Excerpt canadensis extracted with ethyl acetate showed the highest antifungal activity against both tested fungal pathogens. canadensis which was extracted by different solvents including ethanol, ethyl acetate and hexane was examined by using agar well diffusion method & minimum inhibitory concentration method.

   • According to Curini M (2003)

     Excerpt Curini M et al, Composition and in vitro antifungal activity of essential oils of Erigeron canadensis & Myrtus communis from FRANCE, Chem of Nat Compounds, 39, (2) :191–4, 2003.

   • According to Shah NZ (2012)

     Excerpt Shah NZ et al, Antimicrobial & phytotoxic study of Conyza canadensis, Middle-East J Med Pl Res 1,63-7, 2012.

3. 3

   Fungal infection: Candida albicans, C. glabrata, Trichophyton longifusus, Aspergillus flavus, Fusarium solani, Trichosporon insectorum

   Plant part used: Whole plant.

   Scientific references (short excerpts)

   Short excerpts only (not the full article). Full reference records are in the Lapo v2 application.

   • According to PHUONG NB (2015)

     Excerpt canadensis extracted with ethyl acetate showed the highest antifungal activity against both tested fungal pathogens. Two fungal pathogens used to determine the bioactive activity of these extracts were Candida albicans (C.

   • According to TUGCE ONBAS (2017)

     Excerpt In this present study, the antimicrobial & antibiofilm activities of different extracts of Conyza canadensis-L (leaves) collected from Ankara (Turkey) & Rhododendron Ponticum-L (flowers), were evaluated against clinical isolated microorganisms as well as food borne such as Bacillus cereus, B. The results obtained in this study appeared to confirm the antibacterial of the plants investigates which can be an alternative to control strategies or can be used as a model to the search for a new drug.

   • According to Curini M (2003)

     Excerpt Curini M et al, Composition and in vitro antifungal activity of essential oils of Erigeron canadensis & Myrtus communis from FRANCE, Chem of Nat Compounds, 39, (2) :191–4, 2003.

   • According to Shah NZ (2012)

     Excerpt Shah NZ et al, Antimicrobial & phytotoxic study of Conyza canadensis, Middle-East J Med Pl Res 1,63-7, 2012.

   • According to Hayet E (2009)

     Excerpt Hayet E et al Antibacterial, antioxidant and cytotoxic activities of extracts of Conyza canadensis (L.) (Cronquist growing in Tunisia, Med Chem Res, 18, 447-54,2009.

Further indications (including other extraction modes where applicable), dosages, precautions for use, and the <strong>full scientific references</strong> (complete records, not only the short excerpts above) are available in the complete monographic record in the Lapo v2 application.