http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104311522-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D311-62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D311-62 |
| filingDate | 2014-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104311522-B |
| titleOfInvention | A kind of method that EGCG is prepared in separation from Folium Camelliae sinensis |
| abstract | The present invention relates to a kind of method extracting epigallocatechin gallate (EGCG) (EGCG) from tea raw material, the method comprises the following steps: tea raw material warm water extracts, macroporous resin column crossed by lixiviating solution, go up polyamide resin column again, the liquid concentration that obtains, crystallization, sucking filtration, washing, vacuum drying, to obtain final product.Present invention uses tea raw material and use warm water soaking, and utilize the water being higher than soaking temperature to carry out spray extraction, it is purified by continuous column chromatography, will load after pillar by macroporous resin resin, 15 30% ethanol desorbed solutions that macroporous resin obtains by pillar pass through polyamide resin column to allow feed liquid flow through, the ethanol selecting 70 85% carries out eluting, it is thus achieved that the eluent of EGCG.Eluent removes ethanol further condensing crystallizing, final EGCG product.Its content reaches more than 98%, and yield reaches more than 80%. |
| priorityDate | 2014-09-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.