glutathione production Critical Roles of the Cysteine–Glutathione Axis in the of γ-Glutamyl Peptides in the Nervous System PROVITA Endothione | Glutathione Booster
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Most side effects from copper peptides aren't dangerous

Finally, the fermentation was scaled up in a 5-L fermentor, and the highest titer and yield were improved to 5680 mg/L and 45.13 mg/g, respectively, by optimizing the addition conditions of amino acids (40 mM added after 40 h)

doi:10.1186/s12934-016-0439-1 Zhang X, Wu H, Huang B, Li Z, Ye Q (2017) One-pot synthesis of glutathione by a two-enzyme cascade using a thermophilic ATP regeneration system
doi:10.1038/nrneph.2010.33
