International Session 国際セッション (4)

[CS2-36] IMPROVEMENT OF WATER QUALITY IN KUMAMOTO USING LACTIC ACID BACTERIA

*Chowdhury Zahura¹、Kinoshita Riku¹、Kobayashi Kazuki¹、Hashimoto Yuki¹、Terada Kazumi¹、Kinoshita Hideki¹ (1. Tokai University)

Keywords:Nitrate, Nitrogen, Lactic Acid Bacteria, Kumamoto, Biosorption, Water quality

Recent studies have raised the concern of increasing concentration of nitrate-nitrogen (NO₃-N) in Kumamoto’s water. Lactic acid bacteria (LAB) are an order of gram-positive, acid-tolerant bacteria that might absorb heavy metal ions including cadmium, cesium and strontium. The aim of this research was the selection of useful LAB strains effective in decreasing the concentration of nitrate-nitrogen in Kumamoto’s water by utilizing their natural biosorption capabilities. Several LAB strains have been found in this research that can be effective in lowering the amount of NO₃-N in water.