Figure 2: Principle component analysis plot showing separation of corn, wheat and oat grains. The biochemical composition between grains and between yellow dent corn and corn meal can be distinguished. In total, 64.9% of the variation of the data is represented by the first component (34.44%) and second component (30.46%). Filled Circles= soft white wheat; Filled squares= stabilized oat groats; Filled triangles= yellow dent corn; open circles= wheat flour; open squares= whole oat flour and open triangles= corn meal.