US2004109906A1PendingUtilityA1

Extract of mad-dog skullcap

48
Priority: Sep 6, 2002Filed: Sep 5, 2003Published: Jun 10, 2004
Est. expirySep 6, 2022(expired)· nominal 20-yr term from priority
Inventors:Stefan GafnerChantal BergeronFiona Russell
A61K 36/539
48
PatentIndex Score
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Claims

Abstract

An extract of Scutellaria lateriflora L. having a content of flavonoids, calculated as the sum of baicalin, scutellarin, dihydrobaicalin, ikonnikoside I, lateriflorin, baicalein, lateriflorein and wogonin, of at least 18% by weight. A method of obtaining such an extract includes combining dried Scutellaria lateriflora L. plant material with a solvent.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . An extract of  Scutellaria lateriflora  L. having a content of flavonoids, calculated as the sum of baicalin, scutellarin, dihydrobaicalin, ikonnikoside 1, lateriflorin, baicalein, lateriflorein and wogonin, of at least 18% by weight.  
     
     
         2 . The extract of  claim 1  having a content of baicalin of at least 8-9% by weight.  
     
     
         3 . A process for obtaining an extract of  Scutellaria lateriflora  L. rich in flavonoids, said process comprising: 
 combining dried  Scutellaria lateriflora  L. plant material with a solvent to form a solution; and    separating solid material from said solution after a predetermined period, whereby said extract has a content of flavonoids, calculated as the sum of baicalin, scutellarin, dihydrobaicalin, ikonnikoside 1, lateriflorin, baicalein, lateriflorein and wogonin, of at least 18% by weight.    
     
     
         4 . The process of  claim 3  wherein said solvent is boiling water.  
     
     
         5 . The process of  claim 3  wherein said solvent is alcohol.  
     
     
         6 . The process of  claim 3  further comprising stirring solution for a predetermined period.  
     
     
         7 . The process of  claim 3  further comprising drying said extract.  
     
     
         8 . A composition comprising extract of  Scutellaria lateriflora  L. combined with a stabilizing agent.  
     
     
         9 . The composition of  claim 8  wherein said stabilizing agent is ascorbic acid.  
     
     
         10 . The composition of  claim 8  wherein said stabilizing agent is citric acid.  
     
     
         11 . The composition of  claim 8  wherein said stabilizing agent is a combination of citric acid and ascorbic acid.  
     
     
         12 . A process for obtaining an extract of  Scutellaria lateriflora  L., said process comprising: 
 combining dried  Scutellaria lateriflora  L. plant material with a solvent to form a solution;    adding a stabilizing agent to said solution; and    separating solid material from said solution after a predetermined period.    
     
     
         13 . The process of  claim 12  wherein said stabilizing agent is ascorbic acid.  
     
     
         14 . The process of  claim 12  wherein said stabilizing agent is citric acid.  
     
     
         15 . The process of  claim 12  wherein said stabilizing agent is a combination of citric acid and ascorbic acid.  
     
     
         16 . The process of  claim 12  further comprising heating said solution and then cooling said solution prior to adding said stabilizing agent.  
     
     
         17 . The process of  claim 12  wherein said solvent is boiling water.  
     
     
         18 . The process of  claim 12  wherein said solvent is a glycerin aqueous solution.  
     
     
         19 . The process of  claim 12  wherein said solvent is alcohol.

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