Figure 6. (Color online) Nitrogen source variation showed by difference in color intensity upon DNS reagent addition

From

Cellulase Activity Enhancement of Bacteria Isolated From Oil-Pump Soil Using Substrate and Medium Optimization

Amlan Chakraborty, Alisha Mahajan

American Journal of Microbiological Research. 2014, 2(2), 52-56 doi:10.12691/ajmr-2-2-1