http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109678696-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3ec4c0a3ba8a1013d67b4649dfc93996 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e7790e8f8af4261892a25e9d9a338c6c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-08 |
| filingDate | 2019-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ead686c4cfe8f9ee88d9e1764342ae70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dcfa296758ff3723a78302d20421aaa7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d29d5f12c2e31af367661a9ebcfdbe5d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_84e074559d25c8167f6c57de1d0fcb3a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_412812b9fd4cd130fffe81a8fd35ecc6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9501e9a3272f8ba778097c481cf9bc08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_86a8629aa82191d4b44925bdab86fa0b |
| publicationDate | 2019-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109678696-A |
| titleOfInvention | A kind of method for extracting lactic acid from hyaluronic acid fermentation broth |
| abstract | The invention discloses a method for extracting lactic acid from hyaluronic acid fermentation liquor, which comprises the following steps: precipitating hyaluronic acid in the fermentation liquor containing lactate with alcohol, extracting the supernatant and recovering the alcohol to obtain the supernatant the concentrated solution; adjust the pH value of the concentrated solution to an acidic range to generate lactic acid in the concentrated solution; adjust the pH value of the concentrated solution to an alkaline range to generate lactate precipitation; filter to obtain the generated lactate precipitation; The lactate precipitate is subjected to hot water recrystallization, an acidic substance is added to the obtained lactate precipitate to dissolve the lactic acid, and other impurity precipitates are removed by adsorption and filtration; and the filtered filtrate is concentrated to obtain the product lactic acid. The method of the invention is simple to operate, easy to implement, low in cost, can quickly extract and refine lactic acid, and obtain a finished lactic acid with a purity of more than 70%, preferably more than 80%, high purity, and convenient industrial application. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113121329-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113121329-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112326839-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112745215-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112745215-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112326839-A |
| priorityDate | 2019-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 64.