초록
<P>In order to investigate characteristics of<I> Lactobacillus rhamnosus </I>on lactic acid fermentation using different substrate, in this study, saccharification liquid obtained during wet oxidation blasting of straw were used as substrate, conversion reducing sugar to lactate by <I>Lactobacillus rhamnosus </I>was studied and compared with fermentation using glucose as substrate, The results indicated that <I>Lactobacillus rhamnosus </I>could utilize reducing sugar in saccharification liquid obtained during wet oxidation blasting of straw effectively. The highest efficiency of reducing sugar conversion (92.45%) appeared when concentration of reducing sugar as substrate was 20mg/mL; conversion rate of reducing sugar decreased as increasing of sugar concentration. Fermentation of saccharification liquid obtained during wet oxidation blasting of straw to lactic acid by <I>Lactobacillus rhamnosus</I> had optimal effects in the first 48h of incubation.</P>