Characterization of starches of proso,foxtail, barnyard,kodo, and little millets |
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| Authors: | Krishna Kumari S Thayumanavan B |
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| Institution: | (1) Department of Biochemistry, Tamil Nadu Agricultural University, Coimbatore –, 641 003 Tamil Nadu, India |
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| Abstract: | Scanning electron microscope (SEM) pictures of small millet starch granules showed more large polygonal and few small spherical or polygonal granules. The granules of small millets resembled those of rice starch granules. The size of the starch granules ranged from 0.8–10  m. The size of the granules was larger in barnyard millet and smaller in proso millet. Several granules showed deep indentation caused by protein bodies. SEM of starch isolated from 24 hour-germinated kodo millet showed pitting or pinholes at some points due to the attack of amylases (preferentially on bigger granules). Brabender viscoamylograph studies on small millet starches revealed that the gelatinization temperatures ranged from 75.8 to 84.9 ° C. Barnyard millet possessed lower amylograph viscosity, minimum breakdown, and relative breakdown values when compared to the other small millets. |
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| Keywords: | Brabender viscoamylogram Cold paste viscosity Gelatinization temperature Hot paste viscosity Scanning electron microscope Starch granules |
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