원문정보
초록
영어
The water that is passed through the magnetic field is changed into magnetized water. The magnetized water is known to have a unique pattern of hydrogen bond between water molecules, thereby producing different physicochemical properties from the ordinary water. Although it has been known that the magnetized water shows different physicochemical properties, the exact nature of the magnetized water is not clearly elucidated yet. We investigated the effect of the magnetized water in antimicrobial activity. The magnetized water was tested for its antimicrobial activity against gram-positive bacteria Staphylococcus aureus and gram-negative bacteria Escherichia coli. Bacteria were cultured on LB broth at 37°C. The bacterial growth was determined by measuring the optical density (OD) at 600 nm and counting the number of colony forming units (CFU) at 1 hour intervals. The magnetized water showed stronger antimicrobial activities than not-magnetized water and more sensitive antimicrobial activity in Escherichia coli than Staphylococcus aureus. The nature of how the magnetized water can reduce bacteria is still unclear and needs further investigation.