Process for producing plant glycogen
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United States of America Patent
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Apr 20, 1999
Grant Date -
N/A
app pub date -
Sep 2, 1997
filing date -
Feb 24, 1997
priority date (Note) -
Expired
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Abstract
Plant glycogen is a polysaccharide derived from rice and contains a high molecular weight group whose weight average molecular weight is 5.00 to 7.60 million and a low molecular weight group whose weight average molecular weight is 0.30 to 1.10 million, the glycogen is a glucose polymer, being easily dissolved in cold water and hot water, and being rendered viscous at the time of degree of water addition of 25 to 200%. The process for producing plant glycogen, includes immersing finely ground rice in water or a water-containing solvent, subjecting it to solid-liquid separation to give an extract, heating it to remove thermally precipitated solids and proteins, adding the resulting liquid layer to an organic solvent, and recovering the resulting white precipitates, followed by purification, if necessary.
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