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Pseudomonas aeruginosa in Swimming Pool Water: Evidences and Perspectives for a New Control Strategy

View Article: PubMed Central - PubMed

ABSTRACT

Pseudomonas aeruginosa is frequently isolated in swimming pool settings. Nine recreational and rehabilitative swimming pools were monitored according to the local legislation. The presence of P. aeruginosa was correlated to chlorine concentration. The ability of the isolates to form a biofilm on plastic materials was also investigated. In 59.5% of the samples, microbial contamination exceeded the threshold values. P. aeruginosa was isolated in 50.8% of these samples. The presence of P. aeruginosa was not correlated with free or total chlorine amount (R2 < 0.1). All the isolates were moderate- to strong-forming biofilm (Optical Density O.D.570 range 0.7–1.2). To control biofilm formation and P. aeruginosa colonization, Quantum FreeBioEnergy© (QFBE, FreeBioEnergy, Brisighella, Italy), has been applied with encouraging preliminary results. It is a new, promising control strategy based on the change of an electromagnetic field which is responsible for the proliferation of some microorganisms involved in biofilm formation, such as P. aeruginosa.

No MeSH data available.


Mean total molecular count (TMC) at 22 °C, mean TMC at 37 °C, and presence of P. aeruginosa before and after QFBE installation in intake water. *: significant differences (p < 0.05).
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ijerph-13-00919-f009: Mean total molecular count (TMC) at 22 °C, mean TMC at 37 °C, and presence of P. aeruginosa before and after QFBE installation in intake water. *: significant differences (p < 0.05).

Mentions: Figure 9 and Figure 10 show results of the T tests performed to compare the means of the TMC at 22 °C and 37 °C and the presence of Pseudomonas aeruginosa in the intake- and pool-water, before and after QFBE installation. In intake water, there are significant differences (p < 0.05) of considered parameters, while in pool water there is only a significant difference for TMC at 22 °C.


Pseudomonas aeruginosa in Swimming Pool Water: Evidences and Perspectives for a New Control Strategy
Mean total molecular count (TMC) at 22 °C, mean TMC at 37 °C, and presence of P. aeruginosa before and after QFBE installation in intake water. *: significant differences (p < 0.05).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5036752&req=5

ijerph-13-00919-f009: Mean total molecular count (TMC) at 22 °C, mean TMC at 37 °C, and presence of P. aeruginosa before and after QFBE installation in intake water. *: significant differences (p < 0.05).
Mentions: Figure 9 and Figure 10 show results of the T tests performed to compare the means of the TMC at 22 °C and 37 °C and the presence of Pseudomonas aeruginosa in the intake- and pool-water, before and after QFBE installation. In intake water, there are significant differences (p < 0.05) of considered parameters, while in pool water there is only a significant difference for TMC at 22 °C.

View Article: PubMed Central - PubMed

ABSTRACT

Pseudomonas aeruginosa is frequently isolated in swimming pool settings. Nine recreational and rehabilitative swimming pools were monitored according to the local legislation. The presence of P. aeruginosa was correlated to chlorine concentration. The ability of the isolates to form a biofilm on plastic materials was also investigated. In 59.5% of the samples, microbial contamination exceeded the threshold values. P. aeruginosa was isolated in 50.8% of these samples. The presence of P. aeruginosa was not correlated with free or total chlorine amount (R2 &lt; 0.1). All the isolates were moderate- to strong-forming biofilm (Optical Density O.D.570 range 0.7&ndash;1.2). To control biofilm formation and P. aeruginosa colonization, Quantum FreeBioEnergy&copy; (QFBE, FreeBioEnergy, Brisighella, Italy), has been applied with encouraging preliminary results. It is a new, promising control strategy based on the change of an electromagnetic field which is responsible for the proliferation of some microorganisms involved in biofilm formation, such as P. aeruginosa.

No MeSH data available.