http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114805459-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b9620896c0dbd7af5824125f0970fa7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_47d0c46a02d59ba47699c84801c25a1f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H19-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H1-06 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H19-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H1-06 |
| filingDate | 2022-05-20^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e2bdd90255693148d08ec9498dd61ff http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_18e447d7cc6c0fe432f75da2a8d451a4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_038959d579af0f867aad5f576d197fc5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4181532f06e123e9fda7941f46171801 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f877afacc73ca7a3f99828dacdadda2a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1ea058f74f13f9976d4bb10dafc25a5e |
| publicationDate | 2022-07-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114805459-A |
| titleOfInvention | A kind of separation and extraction method of UMP sodium salt |
| abstract | The invention discloses a method for separating and extracting UMP sodium salt, comprising the following steps: (1) adding a phosphatase solution and a catalyst to a catalytic solution containing UMP sodium salt to carry out esterification reaction to obtain an enzyme catalytic solution containing UMP ester; (2) adding the obtained UMP ester-containing enzyme catalytic solution into ethyl acetate for extraction to obtain an ethyl acetate solution containing UMP ester; vacuum concentration to remove the ethyl acetate to obtain a UMP ester concentrated solution; after adjusting the pH, carry out deesterification reaction (3) after adjusting the pH of the obtained reaction solution, it is filtered through a nanofiltration membrane to obtain a nanofiltration retentate; (4) after the obtained nanofiltration retentate is concentrated by evaporation, an anti-solvent is added for crystallization, centrifugation, and drying to obtain UMP sodium salt. The invention adopts the method of extraction after esterification, omits the process of chromatography and solid-liquid separation, and the molar yield of UMP sodium salt is over 92%, and the purity can reach over 98%. |
| priorityDate | 2022-05-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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