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Method for synthesizing polygluconic acid from gluconic acid

Release Date:

2023-07-11

(1) The glucose solution obtained after liquefaction and saccharification of starch is subjected to impurity removal using a granular activated carbon column; (2) The glucose solution is then subjected to nanofiltration to remove disaccharides and polysaccharides; (3) The glucose solution is subsequently concentrated under vacuum, followed by high-temperature polycondensation with the addition of sorbitol and citric acid to produce crude polyglucose; (4) The crude polyglucose is further processed through decolorization, ion exchange, concentration, and drying to yield the final glucose product.

(1) The glucose solution obtained after liquefaction and saccharification of starch is subjected to impurity removal using a granular carbon column;
(2) Subject the glucose solution to nanofiltration to remove disaccharides and polysaccharides.
(3) The glucose solution is subjected to vacuum concentration, followed by the addition of sorbitol and citric acid, and then high-temperature polycondensation to obtain crude polyglucose.
(4) The crude polydextrose is subjected to decolorization, ion-exchange purification, concentration, and drying to obtain the finished glucose product.

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