Screening of strains for bioconversion from DL-ATC to L-cysteine

BIOT 246

Tao Dong, supermandt@126.com1, Zhao Lin, zhaolin@tju.edu.cn2, and Yu Huang2. (1) Department of Chemical Engineering,School of Chemical Engineering and Technology, Tianjin University, 92 Weijin Road, Nankai District, TianJin, 300072, China, (2) Department of Environmental Science, School of Environmental Technology and Science, Tianjin University, 92 Weijin Road ,Nankai District,Tianjin,China, Tianjin,300072, China
Micrococcus P2 for bioconversion from DL-2-amino-Ä2-Thiazoline-4-Carboxylic acid (DL-ATC) to L-cysteine were isolated from sediment samples with DL-ATC used as the only nitrogen source. When mass concentration of DL-ATC was 2%, the productivity of L-cysteine reached to 11.2mg/mL with a molar yield of 92.4% after 6h bioconversion. The heredity for Micrococcus P2 was stable, and the relatively activity of the tenth generator was 96.3%.
 

Poster Session
5:30 PM-7:30 PM, Wednesday, August 22, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Biochemical Technology

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007