http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105624225-A
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_26e3f2c2f2dfc867ce2e429cb6e02e5b |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D209-20 |
filingDate | 2014-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0a080042083ae925f71ba982071b5ac7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b450fc6ff3dc5f53dc77f258eae8c2dc |
publicationDate | 2016-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | CN-105624225-A |
titleOfInvention | Method for producing L-tryptophan through combination of enzyme method and membrane technology |
abstract | The present invention discloses a method for producing L-tryptophan through combination of an enzyme method and a membrane technology, and belongs to the field of amino acid production. According to the method, a fermentation tank, a first filtration membrane, a chemical reaction kettle, a second filtration membrane, a dissolving tank, a third filtration membrane, a crystallization kettle, a drier and a crusher are adopted as equipment, and a concentrated tryptophanase culture liquid, pure water, a DL-cysteine hydrochloride powder agent, indole, active carbon, a sodium hydroxide aqueous solution, hydrochloric acid and ammonia water are adopted as raw materials to produce L-tryptophan. According to the present invention, the common equipment is used, the production efficiency is high, the conversion time is short, and especially the three-stage membrane filtration is added, such that the product purity is substantially improved and can achieve 99.9%, the product achieves the medicine-grade through the improvement of the purity, and the sale price can be increased by 2-3 times the price of the feed-grade L-tryptophan. |
isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110982858-A |
priorityDate | 2014-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 185.