Examination of peak power dependence in the UV inactivation of bacterial spores

Authors
Rice, JK Ewell, M
Citation
Jk. Rice et M. Ewell, Examination of peak power dependence in the UV inactivation of bacterial spores, APPL ENVIR, 67(12), 2001, pp. 5830-5832
Citations number
18
Categorie Soggetti
Biology,Microbiology
Journal title
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
ISSN journal
00992240 → ACNP
Volume
67
Issue
12
Year of publication
2001
Pages
5830 - 5832
Database
ISI
SICI code
0099-2240(200112)67:12<5830:EOPPDI>2.0.ZU;2-B
Abstract
We examine whether the rate of delivery of photons from a UV radiation sour ce has an effect on the inactivation of spores. We directly compare the out put of a high-peak-power UV laser source at 248 nm to a low-power continuou s lamp source (254 nm) in the inactivation of Bacillus subtilis spores. The two UV sources differ by a factor of 10(8) in peak power. Contrary to prev ious reports, no clear differences in spore survival were observed.