http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108840892-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07H17-07 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H17-07 |
| filingDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108840892-B |
| titleOfInvention | Method for extracting quercetin and bergenin from Japanese ardisia |
| abstract | The invention provides a method for extracting quercetin and bergenin from Japanese ardisia, which comprises the following steps: pulverizing Japanese ardisia herb, adding diethyl ether, refluxing, leaching and filtering to obtain filtrate I and filter residue I; adding the filter residue I into trichoderma fermentation liquor and aspergillus niger fermentation liquor for fermentation, adding ethanol for reflux extraction, and filtering to obtain filtrate II; concentrating the filtrate II under reduced pressure, mixing with methanol, loading onto macroporous resin column, and eluting with methanol to obtain eluate; concentrating the eluate under reduced pressure, standing overnight at 4-8 deg.C for crystallization, and recrystallizing to obtain pure bergenin and quercitrin. |
| priorityDate | 2018-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.