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Isolation of One S. cerevisiae BY-14 Mutant BL-23 with High-Yield Production of Glutathione by Ion Implantation

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4 Author(s)
Xuewu Guo ; Key Lab. of Ind. Microbiol., Tianjin Univ. of Sci. & Technol., Tianjin, China ; Liping Shi ; Hongjiang Yang ; Dongguang Xiao

In order to obtain a higher glutathione (GSH) production, the original strain of S. cerevisiae BY-14 was mutated with N+ implantation (10 keV, 60×1014 ions/cm2) , and an ethionine-resistant mutant BL-23 was obtained. The mutant showed GSH production increased from 58.79 mg/l to 113.46 mg/l, and content increased from 14.17 mg/g dry cell weight to 20.86 mg/g dry cell weight. The mutant BL-23 is stable in genetic. Its higher glutathione producing ability could be inherited after ten times subcultures.

Published in:

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Date of Conference:

18-20 June 2010