http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103467437-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1427c3408b89b8eeb0e7fb7302d1b3ee |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-60 |
| filingDate | 2013-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ad34ee0f0188369e98ede64c7821cddc |
| publicationDate | 2013-12-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103467437-A |
| titleOfInvention | New method for extracting piperine from pepper |
| abstract | The invention discloses a new method for extracting piperine from pepper, and particularly relates to a method combining a flash extraction technology with a microwave-ultrasonic technology. The method comprises the steps of putting pepper into a container, and adding 95% ethanol, wherein the solid-liquid ratio is 1:(10-15); grinding the pepper and extracting in a traditional Chinese medicine extractor; placing the material after the grinding and extraction in microwaves, wherein the microwave power is 400-600W; heating for 10 minutes; taking out the product and performing ultrasonic treatment in a water bath; filtering; concentrating the filtrate to (1/10)-(1/15) of the original solvent volume to obtain a concentrate; adding a 2mol/L hot alkaline alcoholic solution into the concentrate, and filtering; adding equivoluminal distilled water into the filtrate to precipitate a great quantity of yellow crystals; performing suction filtration, drying, and carrying out methanol re-crystallization twice to obtain white crystals. The method disclosed by the invention has the advantages of simple process, high extraction efficiency and environmental friendliness and facilitates industrial production. |
| priorityDate | 2013-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.