Calculated Mean Content Values
  
    
      | Units | Average | Min | Max | Standard Deviation | 
  
  
    
      | mg/100 ml | 0.41 | 0.04 | 0.70 | 0.28 | 
    
      | mol/100 ml | 3.68e-06 | 3.63e-07 | 6.36e-06 | 2.58e-06 | 
    
  
  Values calculated by aggregating data from 4 
  different samples
   from 
  2 unique 
  publications.
  
Aglycone Mean Content Values
  
    
      | Aglycone | Units | Average | Min | Max | Standard Deviation | 
  
  
      
        | Catechol | mg/100 ml | 0.41 | 0.04 | 0.70 | 0.28 | 
      
        | mol/100 ml | 3.68e-06 | 3.63e-07 | 6.36e-06 | 2.58e-06 | 
 
  
Original Content Values Used to Produce Means
  
    Lang R., Mueller C., Hofmann T. (2006) Development of a stable isotope dilution analysis with liquid chromatography - tandem mass spectrometry detection for the quantitative analysis of di- and trihydroxybenzenes in foods and model systems. Journal of Agricultural and Food Chemistry 54:5755-5762 PubMed (16881674)  
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed | 
      
      
        
          | 0.70 mg/100 ml | Coffee A | yes | 1 | 
        
          | 0.54 mg/100 ml | Coffee B | yes | 1 | 
        
          | 0.34 mg/100 ml | Coffee C | yes | 1 | 
      
    
   
  
    Fujioka K., Shibamoto T. (2006) Quantitation of volatiles and nonvolatile acids in an extract from coffee beverages: correlation with antioxidant activity. Journal of Agricultural and Food Chemistry 54:6054-6058
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed | 
      
      
        
          | 0.04 mg/100 ml | Coffee, regular | yes | 1 |