Cyclic voltammetric measurements of growth of Aspergillus terreus

A detailed study using the cyclic voltammogram was done on the live cells o f Aspergillus terreus. The peak current values were obtained for different days of growth and plotted against time. The response of cyclic voltammogra m showed the phases of the growth of the fungus. The growth curve obtained matched well with the conventional methodology, which assesses the increase of dry weight of the organisms against time. The electrochemical method is more advantageous because it is easy to assess and consumes less time. Fur ther the electrochemical method clearly shows the decline phase which is ge nerally not very defined in the conventional method of assessment of the gr owth curve. It was confirmed by further experiments that the metabolites we re responsible for the anodic peak and not the biomass. Further work is in progress in order to analyze the metabolite(s) that is/are responsible for the anodic peak.