http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110054703-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P19-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P19-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P19-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B31-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P19-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P19-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C12P19-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P19-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P19-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P19-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P19-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P19-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P19-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12P19-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B31-12 |
| filingDate | 2019-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-02-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110054703-B |
| titleOfInvention | Preparation method of enzyme-modified pregelatinized hydroxypropyl starch |
| abstract | The invention discloses a preparation method of enzyme modified pregelatinized hydroxypropyl starch, and relates to the technical field of modified starch. The technical scheme disclosed by the invention is that biological enzyme (amylase) is used as a catalyst to pretreat starch, so that the etherification reaction of the starch and propylene oxide is easier to perform, the substitution degree of hydroxypropyl is improved, and the enzyme catalysis reaction is green and environment-friendly. A small amount of purified water is used as a solvent, propylene oxide is added into starch subjected to enzyme catalysis under an alkaline condition for reaction, the product is washed and dried to obtain hydroxypropyl starch, other solvents do not need to be additionally added, the method can be realized under the normal pressure condition, and the method is simple to operate, low in equipment requirement and low in production cost; the hydroxypropyl starch is directly dried after being gelatinized with a small amount of water to obtain the pregelatinized hydroxypropyl starch solid, the steps are simple, the production efficiency is greatly improved, and the industrial production is easy to realize. |
| priorityDate | 2019-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 105.