http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109498686-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K2236-51 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K2236-39 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K2236-333 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K2236-55 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K36-725 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P35-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61P43-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P43-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K36-725 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61P35-00 |
| filingDate | 2018-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109498686-B |
| titleOfInvention | Preparation method of triterpenic acid in jujube material |
| abstract | The invention discloses a preparation method of triterpenic acid in jujube material, which comprises the steps of heating, refluxing and extracting alcohol serving as an extracting agent and alcohol-acid serving as an eluent, and adopting two separation means of macroporous adsorption resin column chromatography and preparative liquid chromatography to obtain the triterpenic acid with high purity, wherein the content of the triterpenic acid is over 90 percent, and the main components of the triterpenic acid are betulinic acid, ursolic acid and oleanolic acid. The organic solvent is recycled in the preparation process, and the preparation method is economical and environment-friendly. The invention adopts AB-8 or HPD100 adsorption resin, and the two are styrene type weak polar or non-polar polymers, so that the service life is longer, and the elution efficiency of the triterpenic acid is higher. The preparative liquid chromatography separation is the biggest technical characteristic different from the prior art, and has the advantages of on-line monitoring, targeted separation and high separation efficiency. |
| priorityDate | 2018-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.