Science and Education Publishing American Journal of Food Science and Technology 1 4 2013 11 26 Grinding Studies of Mango Ginger: Mathematical Modelling of Particle Size Distribution and Energy Consumption 70 76 EN Thirupathihalli Pandurangappa Krishna Murthy Department of Biotechnology, Sapthagiri College of Engineering, Bangalore, India Balaraman Manohar AJFST2013142 10.12691/ajfst-1-4-2 2013 11 06 2013 11 23 2013 11 26 Mango ginger was ground in hammer mill with three different classifying screens and pin mill to study the particle size distribution and energy consumption. The Rosin-Rammler Bennet (RRB) model fitted well the particle size distribution data over the entire range of the size distribution for grinding in both hammer mill and pin mill with high coefficient of determination (R2) and low values of residual sum square, root mean square error and Chi-square. Relationship between RRB model parameters with hammer mill screen size was obtained with high R2. All the three classical models such as Rittinger’s, Kick’s and Bond’s law were found suitable to explain the energy consumption for grinding. Energy consumption increased exponentially with decrease in classifying screen size of hammer mill. The Work index for grinding increased with increase in size reduction ratios and were in the range of 0.075-0.58 kW/kg.