The IIT team has been working with different strains of E. cloacae for a number of years.

According to Prof Debatrata Das, who is heading the research team, Enterobacter cloacae can produce about 3.85 moles of hydrogen from one mole of the substrate, which is very close to the theoretical limit of 4 moles of hydrogen during anaerobic fermentation.

...The researches have even used sewage sludge as substrate for the bacteria and have found similar results. This is considered vital, as it will help in energy generation as well as disposal of waste, feel the researchers.

“We have also carried out research on photo fermentation, and it is also giving results as high as 12 moles of hydrogen from one mole of reactants,” said Das. “Present research work aims at making the process economically viable,” he added.