http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0299107-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-757 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-732 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A23F5-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-732 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-757 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23F5-02 |
| filingDate | 1987-07-17^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1992-05-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1992-05-06^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0299107-B1 |
| titleOfInvention | Process for separating and obtaining dicaffeylquinic acids |
| abstract | Dicaffeoylquinic acid can be separated and obtained as the free acid or salt of the latter from crude vegetable extracts with the aid of gel permeation chromatography on crosslinked modified polysaccharides, in particular on dextrans. If appropriate, the monocaffeoylquinic acids can simultaneously be isolated. To obtain the free acid(s), it is necessary to adjust the aqueous extract to a pH of around 1.5 to 3. If using a column of sufficient length, it is also possible in this manner to separately obtain the isomeric 3,4-, 3,5- and 4,5-dicaffeoylquinic acids. |
| priorityDate | 1986-02-06^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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