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DOI: 10.1055/s-2002-34397
© Georg Thieme Verlag Stuttgart · New York
Antiviral Activity of Characterized Extracts from Echinacea spp. (Heliantheae: Asteraceae) against Herpes simplex Virus (HSV-I)
Publikationsverlauf
Received: December 17, 2001
Accepted: May 25, 2002
Publikationsdatum:
30. September 2002 (online)
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Abstract
Extracts of 8 taxa of the genus Echinacea were found to have antiviral activity against Herpes simplex (HSV) virus Type I in vitro when exposed to visible and UV-A light. n-Hexane extracts of roots containing alkenes and amides were more active in general than ethyl acetate extracts containing caffeic acids. The most potent inhibitors of HSV were E. pallida var. sanguinea crude (70 % ethanol) inflorescence extract (MIC = 0.026 mg/mL), cichoric acid (MIC = 0.045 mg/mL) and Echinacea purpurea n-hexane root extract (MIC = 0.12 mg/mL).
Key words
Echinacea - Asteraceae - antiviral - cichoric - amide - alkene - Herpes
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Dr. J. T. Arnason
Department of Biology
University of Ottawa
P.O. Box 450 Station A
Ottawa ON K1N 6N5
Canada
eMail: jarnason@science.uottawa.ca
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