http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-476760-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_966a6c1f382ec9bcb5e3839dfd73e5b8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-65515 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A23L33-15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-655 |
| filingDate | 1998-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_982ecb06f21e3a0cb9eccc86b3efbb6e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66f1c5a2a880afd0eb59a24f18aa8865 |
| publicationDate | 2002-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-476760-B |
| titleOfInvention | Manufacture of ascorbyl monophosphates |
| abstract | A process for the manufacture of alkali metal and alkaline earth metal salts of L- ascorbic acid 2-monophosphate comprises reacting a L-ascorbic acid 2-polyphosphate under alkaline conditions with an alkali metal or alkaline earth metal salt of L-ascorbic acid in concentrated aqueous solution, the amounts of the L-ascorbic acid salt and the alkaline earth metal hydroxide used as the base being arranged such that pH value of the reaction medium is held in the range of about 8 to about 11 and a stepwise transfer of in each case one phosphate group from the polyphosphate to the L-ascorbic acid salt takes place until essentially the polyphosphate has been consumed and only L- ascorbic acid 2-monophosphate salt is present. Preferably, the L-ascorbic acid 2-polyphosphate is produced in situ and calcium hydroxide is used as the base. Independently of whether the L-ascorbic acid 2-polyphosphate is produced separately or in situ, sodium trimetaphosphate is preferably used as the phosphorylating agent. A further aspect of the present invention comprises spray drying the mixture obtained after completion of the reaction, cooling and dilution to a suitable viscosity. The product of the process according to the invention is suitable as an additive for human and animal foodstuffs; it is especially stable against oxidative and thermal degradation and has an especially high content of L-ascorbic acid monophosphate vis-a-vis polyphosphates and is accordingly primarily of use preferably for the nutritional enrichment of fish feed. |
| priorityDate | 1997-03-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.