My coursework was to basically develop a process to turn cellulose into sugar. I decided to use a strong acid to hydrolyse the acetal linkages in cellulose to form D-glucose. I wanted to find the optimum conditions for the proccess starting with concentration. So I plotted a graph of concentration (x-axis) against percentage yield(y-axis). As I was varying concentration I expected a curve that would level off at some point. However, I found that the curve resembled that of a homogenous catalyst, with an increasing yield to a maxium point then a decrease. I can only think that the strong acid was reacting in someway with the sugars. I used Benedict's solution to test for the sugars. Any idea's would be helpful.