http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109971027-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2405-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2301-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L5-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-02 |
| filingDate | 2019-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-03-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109971027-B |
| titleOfInvention | Method for adjusting porosity of bacterial cellulose |
| abstract | The invention relates to a method for adjusting the porosity of bacterial cellulose, which belongs to the field of microbial fermentation and comprises the following steps: (1) and (4) performing static culture on bacterial cellulose with different agar concentrations. Preparing fermentation culture media with different agar concentrations, inoculating activated gluconacetobacter xylinus into the agar culture media with different concentrations, and placing the inoculated gluconacetobacter xylinus into a constant-temperature incubator at 30 ℃ for standing culture for 7 d. (2) And (4) extracting the bacterial cellulose. And taking out the bacterial cellulose membrane generated after the constant-temperature standing culture, washing with water for multiple times, and removing the culture medium and impurities on the surface of the membrane until the membrane is milky and semitransparent and the pH value is close to neutral. (3) The bacterial cellulose membrane is pre-frozen in a refrigerator at the temperature of-20 ℃, and then the bacterial cellulose sample is freeze-dried in a freeze dryer. And (4) placing the freeze-dried bacterial cellulose membrane under SEM for observation, and determining the porosity of the bacterial cellulose membrane. The method utilizes different agar concentrations to synthesize bacterial cellulose with different porosities, is simple and easy to implement, and can be widely applied. The invention has the advantages of simple and easily obtained raw materials, safety, no toxicity, simple operation and extremely high application value. |
| priorityDate | 2018-09-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.