physiological, biochemical, and
16S rDNA sequence analysis methods, the strain was identified as Bacillus licheniformis.
The effect of NaCl concentration on γ-PGA production by WX-02 was investigated in
modified E (ME) medium. It was found that the γ-PGA production was salt-inducible, and
the highest volumetric yield of γ-PGA (13.86 g/l) was attained with 8% of NaCl. It was
also observed that the molecular size of γ-PGA decreased when the NaCl concentration
increased. This was the first report of isolation and identification of a γ-PGA productive
strain, halotolerant B. licheniformis. This study provided a simple strategy for controlling
the yield and molecular size of γ-PGA by W