Nav: Home

Antibacterial soap no more effective than plain soap at reducing bacterial contamination

September 16, 2015

Scientists in Korea have discovered that using antibacterial soap when hand-washing is no more effective than using plain soap, according to a paper published today in the Journal of Antimicrobial Chemotherapy.

The study examined the effect of triclosan (the most commonly used active antiseptic ingredient used in soap) on bacteria in two ways. The first was to examine the bactericidal effects of triclosan in soaps against all 20 strains, and the second compared the ability of antibacterial and non-antibacterial soap to remove bacteria from human hands, by using 16 healthy adult volunteers. The results of the study indicate that there is no significant difference between the effects of plain soap and antibacterial soap when used under 'real life' conditions.

The scientists recreated the conditions of human hand washing by exposing the bacteria for 20 seconds at 22°C (room temperature) and 40°C (warm temperature) to triclosan with a concentration of 0.3% - the maximum allowed by law. There were significantly great effects after more than nine hours, but not during the short time required for hand washing. Lead author on the paper, Dr. Rhee, commented that: "advertisement and consumer belief regarding the effectiveness of antibacterial soaps needs to be addressed."
-end-


Oxford University Press

Related Bacteria Articles:

Conducting shell for bacteria
Under anaerobic conditions, certain bacteria can produce electricity. This behavior can be exploited in microbial fuel cells, with a special focus on wastewater treatment schemes.
Controlling bacteria's necessary evil
Until now, scientists have only had a murky understanding of how these relationships arise.
Bacteria take a deadly risk to survive
Bacteria need mutations -- changes in their DNA code -- to survive under difficult circumstances.
How bacteria hunt other bacteria
A bacterial species that hunts other bacteria has attracted interest as a potential antibiotic, but exactly how this predator tracks down its prey has not been clear.
Chlamydia: How bacteria take over control
To survive in human cells, chlamydiae have a lot of tricks in store.
Stress may protect -- at least in bacteria
Antibiotics harm bacteria and stress them. Trimethoprim, an antibiotic, inhibits the growth of the bacterium Escherichia coli and induces a stress response.
'Pulling' bacteria out of blood
Magnets instead of antibiotics could provide a possible new treatment method for blood infection.
New findings detail how beneficial bacteria in the nose suppress pathogenic bacteria
Staphylococcus aureus is a common colonizer of the human body.
Understanding your bacteria
New insight into bacterial cell division could lead to advancements in the fight against harmful bacteria.
Bacteria are individualists
Cells respond differently to lack of nutrients.

Related Bacteria Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Moving Forward
When the life you've built slips out of your grasp, you're often told it's best to move on. But is that true? Instead of forgetting the past, TED speakers describe how we can move forward with it. Guests include writers Nora McInerny and Suleika Jaouad, and human rights advocate Lindy Lou Isonhood.
Now Playing: Science for the People

#527 Honey I CRISPR'd the Kids
This week we're coming to you from Awesome Con in Washington, D.C. There, host Bethany Brookshire led a panel of three amazing guests to talk about the promise and perils of CRISPR, and what happens now that CRISPR babies have (maybe?) been born. Featuring science writer Tina Saey, molecular biologist Anne Simon, and bioethicist Alan Regenberg. A Nobel Prize winner argues banning CRISPR babies won’t work Geneticists push for a 5-year global ban on gene-edited babies A CRISPR spin-off causes unintended typos in DNA News of the first gene-edited babies ignited a firestorm The researcher who created CRISPR twins defends...