Additional file 4: Figure S3. Stability of GABA production from GABA-producing recombinants of Bifidobacterium adolescentis. GABA production before and after one year storage of B. adolescentis JCM 1275/pKKT427::POri-gadBC (A) and B. adolescentis JCM 1275/pKKT427::Pgap-gadBC (B).