http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103290070-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6e44293bc6a4e349c6de240f350e289f |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12R1-685 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P7-48 |
| filingDate | 2013-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6a0009702a59fe9c2dce2a727af199f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a741128e82bbecf879a8a29af4c891f |
| publicationDate | 2015-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103290070-B |
| titleOfInvention | Method for producing citric acid through continuous batch feeding fermentation |
| abstract | A method for producing citric acid through continuous batch feeding fermentation is characterized in that the method comprises the following steps: 1, crushing a starch-containing raw material, adding water, mixing to obtain a starch slurry, adding high-temperature alpha-amylase to form a mixed slurry, liquefying through adopting a continuous injection liquefying technology to obtain a liquefied liquid, and carrying out solid-liquid separation of the liquefied to obtain a liquefied clear liquid; 2, adding the liquefied clear liquid to a fermentation tank, adding a nitrogen source to prepare a basic culture medium, carrying out heating disinfection of the basic culture medium, cooling to 38-40DEG C (room temperature), inoculating Aspergillus niger strains, carrying out ventilated culture of the Aspergillus niger strains for 20-36h, feeding the culture medium in batch for 16-22h, and continuously fermenting the Aspergillus niger strains until the residual sugar content is below 1.0% to prepare a fermentation liquid; and 3, heating the fermentation liquid to 75-85DEG C, terminating the fermentation, filtering to obtain a citric acid fermentation clear liquid, and extracting to obtain citric acid. The method mainly solves the prominent problems of large fermentation energy consumption, high cost and bad product quality caused by long fermentation period, low citric acid yield, low conversion rate in the fermentation production of citric acid. |
| priorityDate | 2013-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.