http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102993321-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4450e05e2ffe0d0842226377d0108ca4 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B37-00 |
| filingDate | 2012-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af87cb2f67c97cbfedb42e18df7ee29f |
| publicationDate | 2015-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102993321-B |
| titleOfInvention | Preparation method of astragalus polysaccharide |
| abstract | The invention relates to a traditional Chinese medicine extraction technology, and particularly relates to a preparation method of astragalus polysaccharide. The method comprises the following steps of: soaking astragalus with water; performing heat reflux extraction on the mixture; filtering and taking the filtrate; centrifuging the filtrate and taking the supernate; adding chitosan into the supernate for flocculation; standing; removing impurities of the solution, and adding ethanol until the volume ratio of ethanol contained in the solution without impurity reaches 70-80%; standing for 1.5-2.5 hours at 3-5 DEG C; centrifuging and taking the supernate; standing for 22-24 hours, and leaching to obtain precipitate; and washing and drying to obtain the astragalus polysaccharide. The technology provided by the invention combines four purification and impurity removal technologies, improves relatively low requirements on equipment and environment, is easy and convenient to operate, and greatly reduces the production cost while realizing high-purity extraction of astragalus polysaccharide; and through the scheme, the purity of the extracted astragalus polysaccharide exceeds 90%. |
| priorityDate | 2012-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.