http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102603589-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_eb3eb47fa723ca227799ad62bcbf732a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C403-24 |
| filingDate | 2012-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42c521a52932cbe5bd4846eaaca4a5ee http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0571746f0698ddbc60680335b43f3570 |
| publicationDate | 2014-04-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102603589-B |
| titleOfInvention | Method for extracting astaxanthin ester from frozen Euphausia superba and enriching astaxanthin ester |
| abstract | The invention provides a method for extracting astaxanthin ester from frozen Euphausia superba and enriching the astaxanthin ester. The method comprises the following steps: a) feeding Euphausia superba and ethanol into an extracting container at the ratio of 1 kilogram of frozen Euphausia superba to 1-1.2 liters of 90-100% ethanol solution, agitating and extracting for 4-6 times at normal temperature with each time for 1-3h, filtering extracted liquid, and combining the filtrates; b) standing and precipitating the combined filtrate of step a) to obtain supernatant and precipitated liquid; c) concentrating the supernatant of step b) to obtain concentrated extracted liquid; d) adding an equivalent volume of n-hexane into the concentrated extracted liquid of step c), mixing uniformly, standing for delamination to form four obvious layers, and separating transparent and red liquid on a third layer from the top to the bottom; and e) concentrating the transparent and red liquid of step d) into 1/4-1/5 of the original volume at temperature of 50 to 55 DEG C and pressure of -0.07 to -0.09MPa to obtain the product. |
| priorityDate | 2012-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.