PROBLEM TO BE SOLVED: To provide an antibacterial substance and a liquid antibacterial agent high in stability compared with the conventional antibacterial agent, and usable for antibacterial objects as various liquids.SOLUTION: An antibacterial substance made of water-soluble polysaccharide with the average molecular weight of 1,200,000 or more stuck with the precipitated particles of silver with a diameter of 1 mm or more as a dispersed state. Further, by incorporating the antibacterial substance in a state where of being dissolved into the aqueous solvent, a liquid antibacterial agent is made. Further, it is characterized in that the concentration of the silver is 80 ppm or more.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】従来の抗菌剤に比して安定性が高く、しかも、種々の液体である抗菌対象物に使用可能な抗菌物質や液状抗菌剤を提供する。【解決手段】直径が1nm以上の銀の析出粒子を分散状態で付着させた平均分子量120万以上の水溶性多糖類よりなる抗菌物質とした。また、この抗菌物質を水系溶媒中に溶解させた状態で含有させることにより液状抗菌剤とした。また、前記銀の濃度が80ppm以上であることにも特徴を有する。【選択図】図1
