CELL-SIZE DISTRIBUTIONS OF PUFFED CORN EXTRUDATES

The cell distributions of various experimental puffed corn extrudates were determined by image analysis, applied to longitudinal and transversal cross sections. Individual cell cross-sectional area was used as the size measure. All the cell size distributions, regardless of specimen orientation, composition and extrusion conditions, were described mathematically by both the long-normal and Rosin-Rammler distribution functions. The distributions mean size, degree of skewness or the corresponding distribution functions constants, were characteristic of the extrudate type and its particular cellular structure.