Porous Structures of Starch Granules

Granules of sorghum, millet and com starches have openings (pores) on the surface of the granules.28 Pores are also found in the equatorial groove of the large granules 

Recent studies have shown that pores on maize starch granules develop during a late maturation stage, i.e. 30 days after pollination (DAP).39 Starch granules isolated from maize kernels harvested on 30 DAP show few or no pores, whereas those from kernels harvested on 45 DAP (fully matured and dried in the field) show a large number of pores.39 Heavily pitted starch granules are observed close to the germ of maize kernels in a dormant state.40 

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