http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003027865-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_907b057f858aed0e71a1d94a31105e46 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11C3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11C1-103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11C1-007 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11C1-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11C3-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11B3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11B7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11C1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11C3-00 |
| filingDate | 2001-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4dd2f55265ec579c73cd80e29e379b93 |
| publicationDate | 2003-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2003027865-A1 |
| titleOfInvention | Method for isolating high-purified unsaturated fatty acids using crystallization |
| abstract | The present invention relates to a method for isolating and purifying only a certain unsaturated fatty acid in a high purity from fatty acids present in oils including vegetable oils and fish oils by means of crystallization. More particularly, the present invention relates to a method for isolating and purifying only the desired unsaturated fatty acid in a high purity from fatty acids present in oils by selectively using a urea-addition crystallization, and a cooling crystallization or a high liquid chromatography. Specifically, the present invention provides a method for isolating and purifying linoleic acid or oleic acid as unsaturated fatty acids, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a vegetable oil containing linoleic acid or oleic acid at a high concentration, such as safflower oil, corn germ oil or olive oil, as the raw material to two-step urea-addition crystallization using methanol and urea and then crystallizing the concentrated unsaturated fatty acid from an organic solvent under cooling at temperature of −5° C. to −10° C. without stirring, or a method for isolating eicosapentaenoic acid (EPA) as unsaturated fatty acid, in a high purity of at least 99% by subjecting fatty acids derived from oils, particularly, a fish oil containing EPA at a high concentration, such as sardine oil, as the raw material to two-step urea-addition crystallization using methanol and urea to obtain a concentrated unsaturated fatty acid having a high purity and then further purifying the high-purified, concentrated fatty acid by means of a high liquid chromatography using a column filled with Ag-silica or Ag-alumina. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011017574-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019108340-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110734810-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10723973-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011020558-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021077027-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110872540-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8957231-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108530287-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105566167-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014243548-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110699178-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015266803-A1 |
| priorityDate | 2000-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 75.