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Did granny know best? Evaluating the antibacterial, antifungal and antiviral efficacy of acetic acid for home care procedures.
Zinn, Marc-Kevin; Bockmühl, Dirk.
  • Zinn MK; Faculty of Life Sciences, Rhine-Waal University of Applied Sciences, Marie-Curie-Strasse 1, 47533, Kleve, Germany.
  • Bockmühl D; Faculty of Life Sciences, Rhine-Waal University of Applied Sciences, Marie-Curie-Strasse 1, 47533, Kleve, Germany. dirk.bockmuehl@hsrw.eu.
BMC Microbiol ; 20(1): 265, 2020 08 26.
Article in English | MEDLINE | ID: covidwho-730206
Semantic information from SemMedBD (by NLM)
1. acetic acid COEXISTS_WITH citric acid
Subject
acetic acid
Predicate
COEXISTS_WITH
Object
citric acid
2. Modified vaccinia ankara PART_OF Virus
Subject
Modified vaccinia ankara
Predicate
PART_OF
Object
Virus
3. Microorganism LOCATION_OF acetic acid
Subject
Microorganism
Predicate
LOCATION_OF
Object
acetic acid
4. acetic acid COEXISTS_WITH citric acid
Subject
acetic acid
Predicate
COEXISTS_WITH
Object
citric acid
5. Modified vaccinia ankara PART_OF Virus
Subject
Modified vaccinia ankara
Predicate
PART_OF
Object
Virus
6. Microorganism LOCATION_OF acetic acid
Subject
Microorganism
Predicate
LOCATION_OF
Object
acetic acid
ABSTRACT

BACKGROUND:

Acetic acid has been used to clean and disinfect surfaces in the household for many decades. The antimicrobial efficacy of cleaning procedures can be considered particularly important for young, old, pregnant, immunocompromised people, but may also concern other groups, particularly with regards to the COVID-19 pandemics. This study aimed to show that acetic acid exhibit an antibacterial and antifungal activity when used for cleaning purposes and is able to destroy certain viruses. Furthermore, a disinfecting effect of laundry in a simulated washing cycle has been investigated.

RESULTS:

At a concentration of 10% and in presence of 1.5% citric acid, acetic acid showed a reduction of > 5-log steps according to the specifications of DIN EN 1040 and DIN EN 1275 for the following microorganisms P. aeruginosa, E. coli, S. aureus, L. monocytogenes, K. pneumoniae, E. hirae and A. brasiliensis. For MRSA a logarithmic reduction of 3.19 was obtained. Tests on surfaces according to DIN EN 13697 showed a complete reduction (> 5-log steps) for P. aeruginosa, E. coli, S. aureus, E. hirae, A. brasiliensis and C. albicans at an acetic acid concentration of already 5%. Virucidal efficacy tests according to DIN EN 14476 and DIN EN 16777 showed a reduction of ≥4-log-steps against the Modified Vaccinia virus Ankara (MVA) for acetic acid concentrations of 5% or higher. The results suggest that acetic acid does not have a disinfecting effect on microorganisms in a dosage that is commonly used for cleaning. However, this can be achieved by increasing the concentration of acetic acid used, especially when combined with citric acid.

CONCLUSIONS:

Our results show a disinfecting effect of acetic acid in a concentration of 10% and in presence of 1.5% citric acid against a variety of microorganisms. A virucidal effect against enveloped viruses could also be proven. Furthermore, the results showed a considerable antimicrobial effect of acetic acid when used in domestic laundry procedures.
Subject(s)
Keywords

Full text: Available Collection: International databases Database: MEDLINE Main subject: Pneumonia, Viral / Coronavirus Infections / Acetic Acid / Citric Acid / Disinfectants / Pandemics / Betacoronavirus / Anti-Infective Agents Type of study: Experimental Studies / Randomized controlled trials Topics: Vaccines Limits: Humans Language: English Journal: BMC Microbiol Journal subject: Microbiology Year: 2020 Document Type: Article Affiliation country: S12866-020-01948-8

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Pneumonia, Viral / Coronavirus Infections / Acetic Acid / Citric Acid / Disinfectants / Pandemics / Betacoronavirus / Anti-Infective Agents Type of study: Experimental Studies / Randomized controlled trials Topics: Vaccines Limits: Humans Language: English Journal: BMC Microbiol Journal subject: Microbiology Year: 2020 Document Type: Article Affiliation country: S12866-020-01948-8