Examination of antibacterial efficiency of ozone generator
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Abstract
This study aims to examine the ability of ozone generator developed by the Faculty of Engineering, Ubon Ratchathani University to inhibit Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), Bacillus cereus (B. cereus) and Extended Spectrum Beta Lactamase Escherichia coli (ESBL E. coli) that were used as representatives of gram negative bacteria, gram positive bacteria, spore producing bacteria and drug resistant bacteria, respectively. When the tested bacteria with the initial concentration of 0.5 McFarland were streaked on BHI agar and exposed to ozone for 60 min, all tested bacteria were inhibited. Moreover, the 60 min exposure time to ozone could also inhibit all tested bacteria with initial concentrations of 1, 2 and 3 McFarland. The experiments were also performed using 0.5 McFarland as the initial concentration of all tested bacteria with different exposure times to ozone, 10, 20, 30, 40 and 50 min. It was found that exposure to ozone for 10 and 20 min could not inhibit all of the tested bacteria. However, exposure to ozone for 30, 40 and 50 min could inhibit E. coli and S. aureus, but not B. cereus and ESBL E. coli. From this study, it is suggested that the most effective exposure time for the application of the ozone generator to inhibit all types of bacteria would be at least 60 min.
Article Details
บทความที่ได้รับการตีพิมพ์เป็นลิขสิทธิ์ของ วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยอุบลราชธานี
ข้อความที่ปรากฏในบทความแต่ละเรื่องในวารสารวิชาการเล่มนี้เป็นความคิดเห็นส่วนตัวของผู้เขียนแต่ละท่านไม่เกี่ยวข้องกับมหาวิทยาลัยอุบลราชธานี และคณาจารย์ท่านอื่นๆในมหาวิทยาลัยฯ แต่อย่างใด ความรับผิดชอบองค์ประกอบทั้งหมดของบทความแต่ละเรื่องเป็นของผู้เขียนแต่ละท่าน หากมีความผิดพลาดใดๆ ผู้เขียนแต่ละท่านจะรับผิดชอบบทความของตนเองแต่ผู้เดียว
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