| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1aef294958c66118efc647c7f68f0b3d |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07J63-00 |
| filingDate |
2015-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe240b7f1d95ade3f17f088b01c586cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43f5de2e3c5b1a75a29345f4fcbc1de7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_91d90eafa4599a632d897fdd1ca020a7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_760ac72b642e5eecf91b647846c2079c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a3e8a6b93ebdf3c67245528f34aa9411
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_81e5ab803501b10531a7f960ed0d0eea |
| publicationDate |
2017-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-106749482-A |
| titleOfInvention |
The method extracted from Guava Leaf and be enriched with ursolic acid |
| abstract |
Method the invention discloses being extracted from Guava Leaf and be enriched with ursolic acid, comprises the following steps：1) ethanol is extracted；2) it is water-soluble：3) petroleum ether dissolution：4) ethanol dissolving：5) NaOH alkalization：6)H 2 SO 4 Acidifying：7) dilution is centrifuged with 50 DEG C of heating water bath 20min after standing, and gained precipitation obtains ursolic acid crude product through washing, vacuum drying.The method according to the invention, the purity and the rate of recovery of the black bearberry acid product for obtaining respectively reach 17.27% and 83.37%. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112390845-B |
| priorityDate |
2015-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |