Abstract: In this paper we employ Fractal Theory Organisms Full Information Law and Computer Texture Analysis Technique, and systematically investigate the characterization of morphologies of colonies and mycelium during the microorganism fermentation process. We demonstrate that using the fractal dimension characteristics to assist the mould seed selection can significantly improve the efficiency and accuracy. Moreover,we show that the morphology kinetic model and enzymatic activity model developed by us are capable of describing the microorganisms growing and enzymatic transformation process with a good degree of accuracy. When applied to predict the proper time of putting the substrates into the reaction system, the result is found to be in good agreement with the experimental data.

Key words: Computer image texture analysis, Fractal model, Organoorganism enzymatic reaction kinetics, Mould seed selection, MorphoIogies of colonies and mycelium