Changes in tyramine contents and bacterial counts of Enterococcus faecium KCCM12118 grown in modified TSB medium with various concentration of TDC inhibition chemicals. (A) Nicotinic acid (0.05–0.30%), (A-1) nicotinic acid (0.20–0.25%), (B) valeric acid (0.10–0.30%), (B-1) valeric acid (0.15–0.20%), (C) hexanoic acid (0.05–0.30%), (C-1) hexanoic acid (0.10–0.15%)