PROBLEM TO BE SOLVED: To provide a method for improving the sweetness quality {rough taste (bitterness), the residual feeling of aftertaste and the delay of sweetness appearance) of a stevia extract itself, to provide a sweetness quality improvement agent useful for the method, and to provide an oral composition such as a sweetener and drink and food in which sweetness quality is improved by the improvement method.SOLUTION: Provided is a sweetness quality improvement agent obtained by blending a stevia extract with magnesium chloride and at least one kind selected from magnesium sulfate, gentio-oligosaccharide, naringin and highly branched cyclic dextrin, also provided is a method for improving the sweetness quality of a stevia extract, and also provided is a sweetener containing a stevia extract.COPYRIGHT: (C)2015,JPO&INPIT【課題】ステビア抽出物そのものの甘味質{雑味(苦味)、後味の残存感、甘味発現の遅さ}を改善する方法、当該方法に有用な甘味質改善剤、並びに当該甘味質改善方法によって甘味質が改善された甘味料及び飲食品などの経口組成物の提供。【解決手段】ステビア抽出物に、塩化マグネシウム及び硫酸マグネシウム、ゲンチオオリゴ糖、ナリンジン、並びに高度分岐環状デキストリンから選択される少なくとも1種を配合した甘味質改善剤、ステビア抽出物の甘味質の改善方法及びステビア抽出物を含有する甘味料。【選択図】なし
