http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106349325-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07J63-008 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J63-00 |
| filingDate | 2016-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106349325-B |
| titleOfInvention | The method that separating ursolic acid is extracted from olive growing leaves |
| abstract | The invention discloses a kind of method that ursolic acid is extracted from olive growing leaves, comprise the following steps：1) olive growing leaves are crushed, is extracted with the ethanol solution that volumetric concentration is 70~90%, extract solution is filtered, takes decompression filtrate recycling ethanol, obtains crude extract；2) it is that 50~65% ethanol solutions dissolve again crude extract to be added into volumetric concentration, obtains mixed solution；3) by the large pore resin absorption columns of AB on mixed solution 8, first it is eluted with water to colourless, then eluted using 40~50 DEG C, 0.1~0.15mol/L sodium bicarbonate solution, eluted again with the sodium bicarbonate solution of 75~78 DEG C, 0.6~0.8mol/L, third time eluent is collected, adjusts pH to 3~5, filtering, filter residue and drying is taken, is produced.The ursolic acid purity that the present invention extracts is high, and yield is big. |
| priorityDate | 2016-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.