Application of nano-bubbled water to the removal process of bacterial biofilm on material surface

2016 Fiscal Year Final Research Report

• Project/Area Number: 26450356
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering/Agricultural information engineering
• Research Institution: Kagoshima University
• Principal Investigator: HAMANAKA DAISUKE 鹿児島大学, 農水産獣医学域農学系, 准教授 (60399095)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: バイオフィルム / 洗浄 / 殺菌 / 食の安全 / バブル水

Outline of Final Research Achievements

In this study, the application of nano-bubbled water(NBW) to the washing process of microbial biofilm developed on the surface of stainless steel. There was no significant difference in the removal potential between NBW and tap water. However, NBW generated by sodium hypochlorite solution with 100 ppm active chlorine concentration were effective in BF removal compared with simple sodium hypochlorite solution (250 ppm). It was suggested that the micro-structural property of BF affected on the contact efficiency of active chlorine in NBW with bacterial cells and extra-polysaccharides of BF developed on the material surface.

Free Research Field

ポストハーベスト工学