germicidal

[bekko]

http://www.pubmedcentral.nih.gov/pag...69&pageindex=1

But, the effect is masked by a lot of other factors including UV extinction as it passes through water, the impact of sunlight on primary productivity and the use of decomposing primary producers as a substrate for bacterial growth.

[Russell Peters]

Well, what do you know? Very interesting.

[PapaBear]

It is odd how things work.
I remember many moons ago growing Staphlococcus and Streptococcus (sp?) in petri dishes using Listerine as a medium (kills GERMS... but apparantly ONLY the ones that cause bad breath )
The study you link is interesting, but leaves much open to speculation. Is the different kill rate caused by availability of a particular food source or U.V. filtration. What are the influences of byproducts of decay in the growth media itself on the viability of the baccilli?
Another thing I've also speculated on for some time. What influence does UVA, UVB, etc... have on cellular mutation of various strains of bacteria and virus's over generational timelines?