Effects of Metal Ions on Glutathione Production by Saccharomyces Cerevisiae under Different Fermentation Times

The effect of Cu2+,Mg2+,K+,Fe2+,Mn2+ under different fermentation times on GSH fermentation by saccharomyces cerevisiae CS10515-1 were investigated in this paper. It was found that GSH production was 88.53 mg/L, 52.73 mg/L, 41.42 mg/L respectively, which increasing by 63.50 %, 36.58 % and 44.25 % than the controls under the conditions of adding amount was 0.15 g/L K+,0.12 g/L Mg2+and 0.09 g/L Fe2+at 0 hour. GSH production was 61.75 mg/L, which increasing 82.01 % under the conditions of 0.09 g/L Mg2+at 15h. Metal ions' s adding had no effect on GSH production at 24 h.