http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105622705-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J63-00 |
| filingDate | 2015-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105622705-B |
| titleOfInvention | Method for extracting ursolic acid and 2a-hydroxyursolic acid in Lagerstroemia indica |
| abstract | The invention provides the method for extracting ursolic acid and 2a-hydroxyursolic acid in Lagerstroemia indica, comprising the following steps: preparation and chopping of Lagerstroemia indica raw material; Petroleum ether extraction; Supercritical CO Extraction and separation, respectively obtain the The extraction liquid of ursolic acid and the extraction liquid containing 2a-hydroxyursolic acid; the extraction liquid containing ursolic acid and the extraction liquid containing 2a-hydroxy ursolic acid are separated by high-speed countercurrent chromatography to obtain the ursolic acid effluent Fraction and 2a-hydroxyursolic acid effluent fraction; Concentrate to obtain ursolic acid concentrate and 2a-hydroxyursolic acid concentrate respectively; Crystallization and separation correspondingly obtain ursolic acid crystals and 2a-hydroxyursolic acid crystals; Dry to obtain ursolic acid medicine and 2a-hydroxyursolic acid medicine. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-3115460-A1 |
| priorityDate | 2015-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.