PROBLEM TO BE SOLVED: To provide a liquid oral composition which is excellent in stability and appearance stability of dextranase and excellent in use feeling when it is contained in the mouth.SOLUTION: The liquid oral composition contains dextranase and comprises:(A) propylene glycol at 4 to 10%, preferably 4 to 8% and (B) glycerin at 3 to 20%, preferably 5 to 15%. Preferably, the liquid oral composition contains 0.5 to 500 units, more preferably 1.5 to 200 units of dextranase per 1 g of the oral composition.EFFECT: The liquid oral composition can be effectively used for the prevention of dental caries due to decomposition of dental plaque and the adhesion suppressing effect and has the stability of dextranase and the appearance stability of the preparation at high temperature, and also provides an excellent feeling of use.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】デキストラナーゼの安定性および外観安定性に優れ、且つ口に含むときの使用感に優れる液体口腔用組成物の提供。【解決手段】デキストラナーゼ含む液体口腔用組成物に、(A)プロピレングリコール4~10%好ましくは4~8%と、(B)グリセリン3~20%、好ましくは5~15%とを含む液体口腔用組成物。好ましくは、口腔用組成物1g当り、0.5~500単位、より好ましくは1.5~200単位のデキストラナーゼを含む液体口腔用組成物。【効果】該液体口腔用組成物は、う蝕の原因となる歯垢の分解や付着抑制効果により、う蝕の予防に有効に利用でき、デキストラナーゼの安定性および高温での製剤外観安定性、さらに優れた使用感を与える液体口腔用組成物である。【選択図】なし
