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Chlorine dioxide disinfection of single and dual species biofilms, detached biofilm and planktonic cells.
Biofouling. 2012; 28(6):635-47.B

Abstract

Disinfection efficacy testing is usually done with planktonic cells or more recently, biofilms. While disinfectants are much less effective against biofilms compared to planktonic cells, questions regarding the disinfection tolerance of detached biofilm clusters remain largely unanswered. Burkholderia cepacia and Pseudomonas aeruginosa were grown in chemostats and biofilm tubing reactors, with the tubing reactor serving as a source of detached biofilm clusters. Chlorine dioxide susceptibility was assessed for B. cepacia and P. aeruginosa in these three sample types as monocultures and binary cultures. Similar doses of chlorine dioxide inactivated samples of chemostat and tubing reactor effluent and no statistically significant difference between the log(10) reductions was found. This contrasts with chlorine, shown previously to be generally less effective against detached biofilm particles. Biofilms were more tolerant and required chlorine dioxide doses ten times higher than chemostat and tubing reactor effluent samples. A second species was advantageous in all sample types and resulted in lower log(10) reductions when compared to the single species cultures, suggesting a beneficial interaction of the species.

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Authors+Show Affiliations

Behnke S
Center for Biofilm Engineering, Montana State University, Bozeman, 59717, USA.
Camper AK
No affiliation info available

MeSH

BiofilmsBurkholderia cepaciaChlorine CompoundsCoculture TechniquesDisinfectantsDisinfectionOxidesPlanktonPseudomonas aeruginosaSpecies Specificity

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22738417

Citation

Behnke, Sabrina, and Anne K. Camper. "Chlorine Dioxide Disinfection of Single and Dual Species Biofilms, Detached Biofilm and Planktonic Cells." Biofouling, vol. 28, no. 6, 2012, pp. 635-47.
Behnke S, Camper AK. Chlorine dioxide disinfection of single and dual species biofilms, detached biofilm and planktonic cells. Biofouling. 2012;28(6):635-47.
Behnke, S., & Camper, A. K. (2012). Chlorine dioxide disinfection of single and dual species biofilms, detached biofilm and planktonic cells. Biofouling, 28(6), 635-47. https://doi.org/10.1080/08927014.2012.700705
Behnke S, Camper AK. Chlorine Dioxide Disinfection of Single and Dual Species Biofilms, Detached Biofilm and Planktonic Cells. Biofouling. 2012;28(6):635-47. PubMed PMID: 22738417.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Chlorine dioxide disinfection of single and dual species biofilms, detached biofilm and planktonic cells. AU - Behnke,Sabrina, AU - Camper,Anne K, PY - 2012/6/29/entrez PY - 2012/6/29/pubmed PY - 2012/10/16/medline SP - 635 EP - 47 JF - Biofouling JO - Biofouling VL - 28 IS - 6 N2 - Disinfection efficacy testing is usually done with planktonic cells or more recently, biofilms. While disinfectants are much less effective against biofilms compared to planktonic cells, questions regarding the disinfection tolerance of detached biofilm clusters remain largely unanswered. Burkholderia cepacia and Pseudomonas aeruginosa were grown in chemostats and biofilm tubing reactors, with the tubing reactor serving as a source of detached biofilm clusters. Chlorine dioxide susceptibility was assessed for B. cepacia and P. aeruginosa in these three sample types as monocultures and binary cultures. Similar doses of chlorine dioxide inactivated samples of chemostat and tubing reactor effluent and no statistically significant difference between the log(10) reductions was found. This contrasts with chlorine, shown previously to be generally less effective against detached biofilm particles. Biofilms were more tolerant and required chlorine dioxide doses ten times higher than chemostat and tubing reactor effluent samples. A second species was advantageous in all sample types and resulted in lower log(10) reductions when compared to the single species cultures, suggesting a beneficial interaction of the species. SN - 1029-2454 UR - https://www.unboundmedicine.com/medline/citation/22738417/Chlorine_dioxide_disinfection_of_single_and_dual_species_biofilms_detached_biofilm_and_planktonic_cells_ L2 - https://www.tandfonline.com/doi/full/10.1080/08927014.2012.700705 DB - PRIME DP - Unbound Medicine ER -