The aim of this project is to develop superabsorbents from proteins in our case it is azygomycetes fungus, where the process of this fungus is studied experimentally in Universityof Borås. As a result of this experiment by-products of protein are produced and this project isabout the study to make use of such proteins as superabsorbing materials.The water absorbing capacity is computationally studied using Gibbs ensemble Monte Carlo(GEMC) simulations to determine the absorbing properties and to effectively improve theabsorbing capacity by using specific treatments, where this project focuses in using mesoscaleforce fields such as the MARTINI force field instead of atomistic force fields which wereused in studying the structure of the superabsorbents.For this purpose, the program code GEMMS is modified to make it read the desirable fileformats in order to perform the simulations. C++ is used here to code the program to read theGROMACS topology file (.top) for MARTINI force field instead of, as currently reading theatom type file (.atp) and the residue type file (.rtp) for the AMBER99 atomistic force field.