PROBLEM TO BE SOLVED: To provide a method of manufacturing a ferulic acid containing fraction using a vegetable material and a lactobacillus, a lactobacillus fermented food and drink derived from a vegetable material including a lactobacillus and ferulic acid, and a screening method of the lactobacillus having a ferulic acid productivity.SOLUTION: The method of manufacturing a ferulic acid containing fraction includes a process that cultures a lactobacillus having a ferulic acid productivity, the lactobacillus fermented food and drink derived from a vegetable material includes a lactobacillus having a ferulic acid productivity and ferulic acid, and the screening method of a lactobacillus having a ferulic acid productivity. The lactobacillus has a nature to liberate at least 30% of ferulic acid ethyl ester as ferulic acid when cultured in a culture medium in which 0.05% by weight of ferulic acid ethyl ester is added at an optimum temperature of the lactobacillus for 48 hours, and not liberate at least 30% of ferulic acid as dihydroferulic acid when cultured in a culture medium in which 0.05% by weight of ferulic acid is added at an optimum temperature of the lactobacillus for 48 hours.COPYRIGHT: (C)2013,JPO&INPIT【課題】植物素材及び乳酸菌を用いたフェルラ酸含有画分の製造方法、乳酸菌及びフェルラ酸を含有する植物素材由来の乳酸菌発酵飲食品、フェルラ酸産生能を有する乳酸菌のスクリーニング方法を提供する。【解決手段】フェルラ酸産生能を有する乳酸菌を植物素材中で培養する工程を含むフェルラ酸含有画分の製造方法、フェルラ酸産生能を有する乳酸菌及びフェルラ酸を含有する植物素材由来の乳酸菌発酵飲食品、フェルラ酸産生能を有する乳酸菌のスクリーニング方法。上記乳酸菌は、フェルラ酸エチルを0.05重量%添加した培地において、前記乳酸菌の至適温度で48時間培養したとき、フェルラ酸エチルの30%以上をフェルラ酸として遊離し、フェルラ酸を0.05重量%添加した培地において、前記乳酸菌の至適温度で48時間培養したとき、フェルラ酸の30%以上をジヒドロフェルラ酸として遊離しない性質を有する。【選択図】図1
