http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106967036-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 | 2017-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106967036-B |
| titleOfInvention | A kind of preparation method of EGCG |
| abstract | The invention provides a preparation method of EGCG, in particular to a preparation method suitable for industrial production of high-purity EGCG, and belongs to the field of plant monomer separation and purification. Aiming at the problems that the current organic solvent extraction method for preparing EGCG is complicated, a large amount of organic solvent is used in the production process, and is not safe and environmentally friendly, the present invention provides a preparation method of EGCG, which comprises the following steps: green tea pulverization deionized water vacuum high-temperature extraction, inorganic Ceramic membrane filtration, macroporous adsorption resin enrichment, reversed-phase chromatography, vacuum concentration, and freeze-drying steps. In the whole preparation process of the method, only solvents such as water and water-containing ethanol are used, the use and recovery of a large amount of organic solvents are reduced, the process is non-toxic, safe, and the process is simple, and the ceramic membrane, resin and reverse chromatographic column packing can be recycled. , greatly reducing the cost, while improving the purity of EGCG, more suitable for large-scale EGCG production. |
| priorityDate | 2017-04-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.