Calculated Mean Content Values
  
    
      | Units | 
      Average | 
      Min | 
      Max | 
      Standard Deviation | 
    
  
  
    
      | mg/100 g FW | 
      0.99 | 
      0.00 | 
      4.50 | 
      2.03 | 
    
    
      | mol/100 g | 
      3.46e-06 | 
      0.00 | 
      1.57e-05 | 
      7.11e-06 | 
    
    
  
  Values calculated by aggregating data from 5 
  different samples
   from 
  5 unique 
  publications.
  
Aglycone Mean Content Values
  
    
      | Aglycone | 
      Units | 
      Average | 
      Min | 
      Max | 
      Standard Deviation | 
    
  
  
      
        | Kaempferol | 
        mg/100 g FW | 
        0.99 | 
        0.00 | 
        4.50 | 
        2.03 | 
      
      
        | mol/100 g | 
        3.46e-06 | 
        0.00 | 
        1.57e-05 | 
        7.11e-06 | 
      
 
  
Original Content Values Used to Produce Means
  
    Justesen, U.;Knuthsen, P.;Leth, T. (1998) Quantitative analysis of flavonols, flavones, and flavanones in fruits, vegetables and beverages by high-performance liquid chromatography with photo-diode array and mass spectrometric detection. Journal of Chromatography A 799:101-10 PubMed (9550103)  
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | 
          Original Food Description | 
          Commercial Origin | 
          # of Samples Analyzed | 
        
      
      
        
          | 
            0.00 mg/100 g FW
           | 
          Onion - Red | 
          yes | 
          3 | 
        
      
    
   
  
    Mattila, P.;Astola, J.;Kumpulainen, J. (2000) Determination of flavonoids in plant material by HPLC with diode-array and electro-array detections. Journal of Agricultural and Food Chemistry 48:5834-41. PubMed (11312761)  
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | 
          Original Food Description | 
          Commercial Origin | 
          # of Samples Analyzed | 
        
      
      
        
          | 
            0.00 mg/100 g FW
           | 
          Red onion - Supermarkets | 
          yes | 
          1 | 
        
      
    
   
  
    Crozier, A., Lean, M.E.J., McDonald, M.S., Black, C. (1997) Quantitative analysis of the flavonoids content of commercial tomatoes, onions, lettuce and celery. Journal of Agricultural and Food Chemistry 45:590-595
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | 
          Original Food Description | 
          Commercial Origin | 
          # of Samples Analyzed | 
        
      
      
        
          | 
            0.00 mg/100 g FW
           | 
          Red onion - Commercial - 3 Aug 1994 | 
          no | 
          1 | 
        
      
    
   
  
    Bahorun T., Luximon-Ramma A., Crozier A., Aruoma O.I. (2004) Total phenol, flavonoid, proanthocyanidin and vitamin C levels and antioxidant activities of Mauritian vegetables. Journal of the Science of Food and Agriculture 84:1553-1561
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | 
          Original Food Description | 
          Commercial Origin | 
          # of Samples Analyzed | 
        
      
      
        
          | 
            4.50 mg/100 g FW
           | 
          Vegetables - Red onion - Allium cepa L. - Local Red - Skinned | 
          no | 
          1 | 
        
      
    
   
  
    Lugasi A., Hovari J. (2000) Flavonoid aglycons in foods of plant origin I. Vegetables. Acta Alimentaria 29:345-352
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | 
          Original Food Description | 
          Commercial Origin | 
          # of Samples Analyzed | 
        
      
      
        
          | 
            2.43 mg/100 g FW
           | 
          Red onion - Local market - Edible parts | 
          yes | 
          1 |