METHOD FOR PRODUCING REDUCED CINNAMIC ACID ANALOG-CONTAINING FRACTION

摘要

PROBLEM TO BE SOLVED: To provide a lactic acid bacterium having reduced cinnamic acid analog productivity, lactic acid bacterium fermentation food or drink derived from a plant material and containing a reduced cinnamic acid analog, and a method for screening a lactobacillus having the above capacity.SOLUTION: Provided is a lactic acid bacterium having a capacity of producing a cinnamic acid analog and also having a productivity of a reduced cinnamic acid analog. Also provided is a method for producing a cinnamic acid analog (such as ferulic acid)-containing fraction including a process of culturing the lactic acid bacterium in a plant material. Also provided is a lactic acid bacterium fermentation food derived from a plant material containing the reduced cinnamic acid analog. Also provided is a method for screening a lactic acid bacterium having a property that, when culture is performed at the optimal temperature of the lactobacillus for 48 hours in a medium with ethyl ferulate in 0.05 wt.% added thereto, 30% or greater of the ethyl ferulate is liberated as dihydroferulic acid.