Saccharified solution production method using porous membrane
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United States of America Patent
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Jun 30, 2020
Grant Date -
Mar 7, 2019
app pub date -
Sep 5, 2018
filing date -
Sep 7, 2017
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Abstract
A method ensuring excellent chemical resistance to a chemical cleaning solution, excellent filtration performance and an enhanced life in a saccharified solution production method including a cleaning step and filtration using a porous filtration membrane. A method for producing a saccharified solution, including the following steps: a liquefaction step of adding an enzyme to liquid starch to obtain a sugar-containing liquefied product; a saccharification step of adding a saccharifying enzyme to further degrade the sugar and obtain a saccharified solution composition containing a saccharified solution and an insoluble component; a filtration step of passing the saccharified solution composition through a porous membrane composed of a resin having a three-dimensional network structure to separate the saccharified solution from the insoluble component; and a cleaning step of passing or soaking the porous membrane into a cleaning solution to clean/remove the insoluble matter attached to the surface or inside of the porous membrane.
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