http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111139273-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D209-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12N1-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P13-227 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-19 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-20 |
| filingDate | 2019-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-111139273-B |
| titleOfInvention | Method for preparing, separating and extracting L-tryptophan |
| abstract | The invention belongs to the technical field of L-tryptophan production, and discloses a method for preparing, separating and extracting L-tryptophan, which is characterized by comprising the following steps: step 1) fermentation, step 2) ceramic membrane filtration, step 3) chromatographic separation, step 4) decolorization, step 5) concentration and evaporation, and step 6) centrifugation and drying. The L-tryptophan feed liquid is subjected to the processes of ceramic membrane filtration, sequential simulated moving bed chromatographic separation, decoloration in a decoloration tank and the like, so that the impurities in the feed liquid are greatly removed, and the purity and the yield of the product are greatly improved. |
| priorityDate | 2019-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 53.