http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2000210094-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_966a6c1f382ec9bcb5e3839dfd73e5b8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P17-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P13-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P17-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P13-04 |
| filingDate | 2000-01-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42703809c04d1335ecbeee8b3b9cf923 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_487c295cc00ce1a5be2e307b94315338 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26c1c755db233b5b10b4c59d78b543bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ac762657aac445eee65589efc41c383 |
| publicationDate | 2000-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2000210094-A |
| titleOfInvention | Method for producing L-ascorbic acid or D-erythorbic acid |
| abstract | (57) [Problem] To provide an improved method for producing L-ascorbic acid or D-erythorbic acid. SOLUTION: Production of L-ascorbic acid (vitamin C) from 2-keto-L-gulonic acid, or 2-keto-D- A method for producing D-erythorbic acid from gluconic acid, which comprises contacting 2-keto-L-gulonic acid or 2-keto-D-gluconic acid with lactonase in a solution, respectively. Lactonase is In particular, the enzyme classification EC 3.1.1. x. The solvent for this reaction is water, It can be an aqueous alcohol, a non-alcoholic organic solvent, or a mixture of an aqueous alcohol and a non-alcoholic organic solvent. The contacting is generally carried out in a temperature range from 0 ° C to 120 ° C and a pH range from 1.5 to 12. In each case, the starting materials can be the free acids, sodium salts or calcium salts. Vitamin C thus produced has well-known uses, and D-erythorbic acid, which is alternatively produced, is useful as an antioxidant for food additives. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002101895-A |
| priorityDate | 1999-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 144.