PROBLEM TO BE SOLVED: To provide easy techniques of production or pulverization of a Rubus suavissimus S. Lee extraction essence that can be used in place of the Rubus suavissimus S. Lee essence that is obtained by electrodialyzing Rubus suavissimus S. Lee extract and has various problems, the Rubus suavissimus S. Lee extraction essence not affecting on flavor while maintaining the effect in enhancing the proliferation of Rubus suavissimus S. Lee extract lactic acid bacteria and the survivability of Bifidobacterium bacteria, and having an effect in enhancing the proliferation of Bifidobacterium bacteria that has not ever been seen before.SOLUTION: The invention provides a Rubus suavissimus S. Lee extraction essence characterized by being obtained by an activated carbon treatment of Rubus suavissimus S. Lee extract, and a production method of a fermented food using this.SELECTED DRAWING: None【課題】様々な問題を有する、甜茶エキスを電気透析して得られる甜茶エッセンスに代え得る、甜茶エキスの乳酸菌の増殖性やビフィドバクテリウム属細菌の生残性等を高める効果を維持しつつ、風味に影響を与えず、従来では見られなかったビフィドバクテリウム属細菌の増殖性を高める効果を有し、製造や粉末化の容易な技術を提供する。【解決手段】甜茶エキスを、活性炭処理することにより得られることを特徴とする甜茶抽出エッセンスおよびこれを利用した発酵食品の製造方法。【選択図】なし
