反应详情

The resulting strains H3679 and H3680 were cultured on SC-medium lacking uracil for plasmid selection, with 10 g I−1 glucose and 20 g I−1 xylose as carbon sources. The strains were cultured in 250 ml Erlenmeyer flasks in 50 ml medium with 250 rpm agitation at 30° C. Strain H3679 expressing the gene CC_1225 produced 3.3 g xylonic acid I−1 extracellularly in 75 h (FIG. 14). Strain H3680 (control strain) produced no xylonic acid when grown under the same conditions.

1. customwere cultured in 250 ml Erlenmeyer flasks in 50 ml medium with 250 rpm agitation at 30° C