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Antiviral activity of plant juices and green tea against SARS-CoV-2 and influenza virus in vitro

Carina Conzelmann, Tatjana Weil, Rüdiger Groß, Peggy Jungke, Bruno Frank, Maren Eggers, Janis A. Müller, Jan Münch
doi: https://doi.org/10.1101/2020.10.30.360545
Carina Conzelmann
1Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
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Tatjana Weil
1Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
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Rüdiger Groß
1Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
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Peggy Jungke
2Technische Universität Dresden, Medical Faculty Carl Gustav Carus, Dresden, Germany
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Bruno Frank
3CogniVerde GmbH Groß-Umstadt/Kleinrinderfeld, Germany
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Maren Eggers
4Labor Prof. Dr. G. Enders MVZ GbR, Stuttgart, Germany
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Janis A. Müller
1Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
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  • For correspondence: Janis.mueller@uni-ulm.de jan.muench@uni-ulm.de
Jan Münch
1Institute of Molecular Virology, Ulm University Medical Center, Ulm, Germany
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  • For correspondence: Janis.mueller@uni-ulm.de jan.muench@uni-ulm.de
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Abstract

Respiratory viruses initially infect the naso- and oropharyngeal regions, where they amplify, cause symptoms and may also be transmitted to new hosts. Preventing initial infection or reducing viral loads upon infection might soothe symptoms, prevent dissemination into the lower airways, or transmission to the next individual. We here analyzed the potential of plant derived products to inactivate SARS-CoV-2 and influenza virus. We found that black chokeberry (Aronia melanocarpa) juice, pomegranate (Punica granatum) juice, and green tea (Camellia sinensis) have virucidal activity against both viruses, suggesting that oral rinsing may reduce viral loads in the oral cavity thereby lowering virus transmission.

Competing Interest Statement

B.F. is partner of CogniVerde GmbH Gross-Umstadt, Germany. R.G. acted as a consultant of CogniVerde GmbH, Gross-Umstadt, Germany.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. All rights reserved. No reuse allowed without permission.
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Posted November 03, 2020.
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Antiviral activity of plant juices and green tea against SARS-CoV-2 and influenza virus in vitro
Carina Conzelmann, Tatjana Weil, Rüdiger Groß, Peggy Jungke, Bruno Frank, Maren Eggers, Janis A. Müller, Jan Münch
bioRxiv 2020.10.30.360545; doi: https://doi.org/10.1101/2020.10.30.360545
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Antiviral activity of plant juices and green tea against SARS-CoV-2 and influenza virus in vitro
Carina Conzelmann, Tatjana Weil, Rüdiger Groß, Peggy Jungke, Bruno Frank, Maren Eggers, Janis A. Müller, Jan Münch
bioRxiv 2020.10.30.360545; doi: https://doi.org/10.1101/2020.10.30.360545

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