| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K14-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P21-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P13-14 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07K14-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P21-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L101-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P21-02 |
| filingDate |
2000-12-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78a42b47e7558c185383488252c73b8b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16ac071eea23638ac1ae2b798c1006f2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_14cf9773bf77400e3c3860f9393a7c41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c77b49733f4e9cd8672fe7c31f778b9b |
| publicationDate |
2001-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2001016341-A1 |
| titleOfInvention |
Process for preparing gamma-polyglutamic acid from high-viscous culture broth |
| abstract |
The present invention relates to a process for preparing γ-polyglutamic acid (γ-PGA) from high-viscous culture broth, more particularly, to an economical and efficient process for preparing γ-polyglutamic acid from high-viscous culture broth with easy removal of microorganisms and a subsequent concentrating process employing a filtration membrane. The present invention provides the process for preparing γ-polyglutamic acid from high-viscous culture broth which comprises the steps of: culturing γ-polyglutamic acid-producing microorganism for 15-30 hours under condition of pH 5.0-7.5 and 30-40° C. to obtain high-viscous culture broth with a concentration of 20-30 g/L; removing microorganism from the high-viscous culture broth thus obtained by adjusting pH to 2-4 or 7-9 and centrifuging at 3,000-9,000 rpm for 10-50 minutes; and, obtaining γ-polyglutamic acid by concentrating the culture broth employing filter and precipitating γ-polyglutamic acid by addition of alcohol. In accordance with the invention, polyglutamic acid can be prepared from high-viscous culture broth in an economical and efficient manner, which would make it possible that polyglutamic acid can be applied widely as a universal material. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006246096-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110106212-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110129225-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114774488-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1519979-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1519979-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005037472-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2006129835-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109234328-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113087895-A |
| priorityDate |
1999-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |