The higher GABA content found in NF compared to LPF extracts could be attributed to the higher number of LAB strains producing GAD in NF and also to the different pH of both fermentations. pH seems to play a crucial role in GABA production by LAB. It has been reported that L. plantarum DSM19463 (DSMZ-BP/7 0906; formerly L. plantarum C48) synthesised the maximum GABA concentration at pH 6.0