PROBLEM TO BE SOLVED: To provide a photoresponsive deodorant antibacterial agent containing an excellent photoresponsive component having a singlet oxygen-generating ability, a photoresponsive deodorant antibacterial product containing the photoresponsive deodorant antibacterial agen, and a deodorant/sterilization method using the photoresponsive deodorant antibacterial agent, and also provide a pharmaceutical composition for photodynamic therapy, the composition containing a component having an excellent photoresponsive component having a singlet oxygen-generating ability.SOLUTION: According to the present invention, a photoresponsive deodorant antibacterial agent comprises indigo or an indigo extract, and a photoresponsive deodorant antibacterial product comprises the photoresponsive deodorant antibacterial agent. According to the present invention, there is also provided a deodorant/sterilization method using the photoresponsive deodorant antibacterial agent, the method including a step of irradiating the photoresponsive deodorant antibacterial agent with light in the presence of oxygen. According to the present invention, there is further provided a pharmaceutical composition for photodynamic therapy comprising an indigo extract.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】優れた光応答性の一重項酸素生成能を有する成分を含有する光応答性消臭抗菌剤、該光応答性消臭抗菌剤を含む光応答性消臭抗菌製品、及び該光応答性消臭抗菌剤を用いた消臭殺菌方法を提供する。また、優れた光応答性の一重項酸素生成能を有する成分を含有する光線力学的療法用の医薬組成物を提供する。【解決手段】藍又は藍の抽出物を含有する光応答性消臭抗菌剤、当該光応答性消臭抗菌剤を含む光応答性消臭抗菌製品、酸素存在下で当該光応答性消臭抗菌剤に光照射する工程を含む該光応答性消臭抗菌剤を用いた消臭殺菌方法、及び藍の抽出物を含有する光線力学的療法用の医薬組成物。【選択図】なし
