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Lanave G, Pellegrini F, Triggiano F, De Giglio O, Lucente MS, Diakoudi G, Catella C, Gentile A, Tardugno R, Fracchiolla G, Martella V, Camero M. In Vitro Virucidal Activity of Different Essential Oils against Bovine Viral Diarrhea Virus Used as Surrogate of Human Hepatitis C Virus. Antibiotics (Basel) 2024; 13:514. [PMID: 38927181 PMCID: PMC11201044 DOI: 10.3390/antibiotics13060514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
The hepatitis C virus (HCV) is a major hepatotropic virus that affects humans with increased risk of developing hepatocellular carcinoma. The bovine viral diarrhea virus (BVDV) causes abortion, calf mortality and poor reproductive performance in cattle. Due the difficulties of in vitro cultivation for HCV, BVDV has been used as surrogate for in vitro assessment of the efficacy of antivirals. Essential oils (EOs) display antiviral and virucidal activity on several viral pathogens. In this study, the virucidal activity of five EOs, Salvia officinalis L. EO (SEO), Melissa officinalis L. EO (MEO), Citrus lemon EO (LEO), Rosmarinus officinalis L. EO (REO) and Thymus vulgaris L. EO (TEO) against BVDV was evaluated in vitro at different concentrations for several time contacts. MEO and LEO were able to considerably inactivate BVDV with a time- and dose-dependent fashion. MEO and LEO at the highest concentrations decreased viral titer by 2.00 and 2.25 log10 TCID50/50 μL at 8 h contact time, respectively. SEO, REO and TEO displayed mild virucidal activity at the highest concentrations for 8 h contact times. In this study, the virucidal efficacies of MEO and LEO against BVDV were observed regardless of compound concentration and contact time. Further studies are needed to confirm the potential use of MEO and LEO as surface disinfectants.
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Affiliation(s)
- Gianvito Lanave
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
| | - Francesco Pellegrini
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
| | - Francesco Triggiano
- Interdisciplinary Department of Medicine, Hygiene Section, University of Bari Aldo Moro, 70124 Bari, Italy; (F.T.); (O.D.G.)
| | - Osvalda De Giglio
- Interdisciplinary Department of Medicine, Hygiene Section, University of Bari Aldo Moro, 70124 Bari, Italy; (F.T.); (O.D.G.)
| | - Maria Stella Lucente
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
| | - Georgia Diakoudi
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
| | - Cristiana Catella
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
| | - Arturo Gentile
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
| | - Roberta Tardugno
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, 70125 Bari, Italy; (R.T.); (G.F.)
| | - Giuseppe Fracchiolla
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari Aldo Moro, 70125 Bari, Italy; (R.T.); (G.F.)
| | - Vito Martella
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
| | - Michele Camero
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010 Valenzano, Italy; (G.L.); (F.P.); (M.S.L.); (G.D.); (C.C.); (A.G.); (V.M.)
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Lanave G, Catella C, Catalano A, Lucente MS, Pellegrini F, Fracchiolla G, Diakoudi G, Palmisani J, Trombetta CM, Martella V, Camero M. Assessing the virucidal activity of essential oils against feline calicivirus, a non-enveloped virus used as surrogate of norovirus. Heliyon 2024; 10:e30492. [PMID: 38711631 PMCID: PMC11070907 DOI: 10.1016/j.heliyon.2024.e30492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 04/27/2024] [Accepted: 04/28/2024] [Indexed: 05/08/2024] Open
Abstract
Norovirus (NoV) causes serious gastrointestinal disease worldwide and is regarded as an important foodborne pathogen. Due the difficulties of in vitro cultivation for human NoV, alternative caliciviruses (i.e., feline calicivirus, FCV, or murine NoV) have long been used as surrogates for in vitro assessment of the efficacy of antivirals. Essential oils (EOs) are natural compounds that have displayed antimicrobial and antioxidant properties. We report in vitro the virucidal efficacy of four EOs, Melissa officinalis L. EO (MEO), Thymus vulgaris L. EO (TEO), Rosmarinus officinalis L. EO (REO), and Salvia officinalis L. EO (SEO) against FCV at different time contacts (10, 30 min, 1, 4 and 8 h). At the maximum non-cytotoxic concentration and at 10- and 100- fold concentrations over the cytotoxic threshold, the EOs did not decrease significantly FCV viral titers. However, MEO at 12,302.70 μg/mL exhibited a significant efficacy decreasing the viral titer by 0.75 log10 Tissue Culture Infectious Dose (TCID50)/50 μl after 10 min as compared to virus control. In this study, virucidal activity of four EOs against FCV, was investigated. A lack of virucidal efficacy of TEO, REO and SEO at different compound concentrations and time contacts against FCV was observed whilst MEO was able to significantly decrease FCV titer.
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Affiliation(s)
- Gianvito Lanave
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010, Valenzano, Bari, Italy
| | - Cristiana Catella
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010, Valenzano, Bari, Italy
| | - Alessia Catalano
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, 70125, Bari, Italy
| | - Maria Stella Lucente
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010, Valenzano, Bari, Italy
| | - Francesco Pellegrini
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010, Valenzano, Bari, Italy
| | - Giuseppe Fracchiolla
- Department of Pharmacy-Drug Sciences, University of Bari Aldo Moro, 70125, Bari, Italy
| | - Georgia Diakoudi
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010, Valenzano, Bari, Italy
| | - Jolanda Palmisani
- Department of Biosciences, Biotechnologies and Environment, University of Bari Aldo Moro, 70126, Bari, Italy
| | - Claudia Maria Trombetta
- Department of Molecular and Developmental Medicine, University of Siena, 53100, Siena, Italy
| | - Vito Martella
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010, Valenzano, Bari, Italy
| | - Michele Camero
- Department of Veterinary Medicine, University of Bari Aldo Moro, 70010, Valenzano, Bari, Italy
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Parra-Acevedo V, Ocazionez RE, Stashenko EE, Silva-Trujillo L, Rondón-Villarreal P. Comparative Virucidal Activities of Essential Oils and Alcohol-Based Solutions against Enveloped Virus Surrogates: In Vitro and In Silico Analyses. Molecules 2023; 28:molecules28104156. [PMID: 37241897 DOI: 10.3390/molecules28104156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 05/10/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
The large-scale use of alcohol (OH)-based disinfectants to control pathogenic viruses is of great concern because of their side effects on humans and harmful impact on the environment. There is an urgent need to develop safe and environmentally friendly disinfectants. Essential oils (EOs) are generally recognized as safe (GRAS) by the FDA, and many exhibit strong antiviral efficacy against pathogenic human enveloped viruses. The present study investigated the virucidal disinfectant activity of solutions containing EO and OH against DENV-2 and CHIKV, which were used as surrogate viruses for human pathogenic enveloped viruses. The quantitative suspension test was used. A solution containing 12% EO + 10% OH reduced > 4.0 log10 TCID50 (100% reduction) of both viruses within 1 min of exposure. In addition, solutions containing 12% EO and 3% EO without OH reduced > 4.0 log10 TCID50 of both viruses after 10 min and 30 min of exposure, respectively. The binding affinities of 42 EO compounds and viral envelope proteins were investigated through docking analyses. Sesquiterpene showed the highest binding affinities (from -6.7 to -8.0 kcal/mol) with DENV-2 E and CHIKV E1-E2-E3 proteins. The data provide a first step toward defining the potential of EOs as disinfectants.
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Affiliation(s)
- Valentina Parra-Acevedo
- Centro de Cromatografía y Espectrometría de Masas-CROM-MASS, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Raquel E Ocazionez
- Centro de Cromatografía y Espectrometría de Masas-CROM-MASS, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Elena E Stashenko
- Centro de Cromatografía y Espectrometría de Masas-CROM-MASS, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Lina Silva-Trujillo
- Centro de Cromatografía y Espectrometría de Masas-CROM-MASS, Universidad Industrial de Santander, Bucaramanga 680002, Colombia
| | - Paola Rondón-Villarreal
- Facultad de Ciencias Médicas y de la Salud, Instituto de Investigación Masira, Universidad de Santander, Bucaramanga 680003, Colombia
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Ability of Essential Oil Vapours to Reduce Numbers of Culturable Aerosolised Coronavirus, Bacteria and Fungi. Antibiotics (Basel) 2022; 11:antibiotics11030393. [PMID: 35326856 PMCID: PMC8944824 DOI: 10.3390/antibiotics11030393] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 02/04/2023] Open
Abstract
Transmission of pathogens present in the indoor air can occur through aerosols. This study evaluated the efficacy of an evaporated mix of essential oils to reduce the numbers of culturable aerosolized coronavirus, bacterium and fungus. The essential oil-containing gel was allowed to vaporize inside a glass chamber for 10 or 20 min. Aerosols of a surrogate of SARS-CoV-2, murine hepatitis coronavirus MHV-1, Escherichia coli or Aspergillus flavus spores were produced using a collision nebuliser and passed through the essential oil vapours, then collected on a six-stage Andersen sampler. The six-stages of the impact sampler capture aerosols in sizes ranging from 7 to 0.65 µm. The number of culturable microbes present in the aerosols collected in the different stages were enumerated and compared to the number of culturable microbes in control microbial aerosols that were not exposed to the evaporated essential oils. After 10 and 20 min evaporation, the essential oils reduced the numbers of culturable aerosolized coronavirus by 48% (log10 reduction = 0.3; p = 0.002 vs. control) and 53% (log10 reduction = 0.3; p = 0.001 vs. control), respectively. The essential oils vaporised for 10 min, reduced the number of viable E. coli by 51% (log10 reduction = 0.3; p = 0.032 vs. control). The Aspergillus flavus spores were mostly observed in the larger aerosols (7.00 µm to 2.10 µm) and the essential oils vaporised for 10 min reduced the number of viable spores by 72% (log10 reduction = 0.6; p = 0.008 vs. control). The vapours produced by a gel containing naturally occurring essential oils were able to significantly reduce the viable numbers of aerosolized coronavirus, bacteria and fungal spores. The antimicrobial gel containing the essential oils may be able to reduce aerosol transmission of microbes when used in domestic and workplace settings.
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