Removal of bacteria Legionella pneumophila, Escherichia coli, and Bacillus subtilis by (super)cavitation

Investigation of Legionella Pneumophila bacteria in hospital water supply systems

Introduction: Legionella Pneumophila bacteria is known as one of the most important nosocomial infections and the most common cause of death in patients. This study was aimed to identify Legionella Pneumophila bacteria in hospital water supply systems. Material and Methods: This descriptive cross-sectional study was performed to identify Legionella pneumophila in hot and cold-water systems of i...

multimer) to Escherichia coli and Bacillus subtilis

Heterologous Bacillus subtilis-Escherichia coli Gene Fusion

Translational coupling was demonstrated in a gene fusion in which the promoter and the N-terminal region of the Bacillus subtilis subtilisin (aprA) gene were fused to a promoterless Tn9-derived chloramphenicol acetyltransferase (CAT; EC 2.3.1.28) gene. Expression of this gene fusion results in the production of a native-sized CAT product, whereas the Tn9-derived CAT gene is usually not translat...

Effect of Microwaves on Escherichia coli and Bacillus subtilis.

Suspensions of Escherichia coli and Bacillus subtilis spores were exposed to conventional thermal and microwave energy at 2,450 MHz. The degrees of inactivation by the different energy sources were compared quantitatively. During the transient heating period by microwave energy, approximately a 6 log cycle reduction in viability was encountered for E. coli. This reduction was nearly identical t...

contamination of tap water with pseudomonas aeruginosa, legionella pneumophila, and escherichia coli in guilan, iran

background :     river and underground waters are main sources of tap water in guilan, iran. overland wastes move into rivers during periods of heavy or extended rain that is very common in the area. pseudomonas aeruginosa , legionella pneumophila , and escherichia coli are main human pathogens with water source. this study is designed to determine the load of these bacteria in main water suppl...