Calculated Mean Content Values
  
    
      | Units | Average | Min | Max | Standard Deviation | 
  
  
    
      | mg/100 ml | 0.81 | 0.00 | 1.62 | 0.55 | 
    
      | mol/100 ml | 5.24e-06 | 0.00 | 1.05e-05 | 3.59e-06 | 
    
  
  Values calculated by aggregating data from 21 
  different samples
   from 
  2 unique 
  publications.
  
Aglycone Mean Content Values
  
    
      | Aglycone | Units | Average | Min | Max | Standard Deviation | 
  
  
      
        | Protocatechuic acid | mg/100 ml | 0.81 | 0.00 | 1.62 | 0.55 | 
      
        | mol/100 ml | 5.24e-06 | 0.00 | 1.05e-05 | 3.59e-06 | 
 
  
Original Content Values Used to Produce Means
  
    Alonso A.M., Castro R., Rodriguez M.C., Guillen D.A., Barroso C.G. (2004) Study of the antioxidant power of brandies and vinegars derived from Sherry wines and correlation with their content in polyphenols. Food Research International 37:715-721
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed | 
      
      
        
          | 0.96 mg/100 ml | Vinegar - Not aged in wood - V1 | yes | 1 | 
        
          | 1.62 mg/100 ml | Vinegar - Not aged in wood - V2 | yes | 1 | 
        
          | 0.66 mg/100 ml | Vinegar - Not aged in wood - V3 | yes | 1 | 
        
          | 0.00 mg/100 ml | Vinegar - Not aged in wood - V4 | yes | 1 | 
        
          | 0.48 mg/100 ml | Vinegar - Not aged in wood - V5 | yes | 1 | 
        
          | 0.00 mg/100 ml | Vinegar - Aged in wood - V1-W | yes | 1 | 
        
          | 0.00 mg/100 ml | Vinegar - Aged in wood - V2-W | yes | 1 | 
        
          | 0.39 mg/100 ml | Vinegar - Aged in wood - V3-W | yes | 1 | 
        
          | 0.46 mg/100 ml | Vinegar - Aged in wood - V4-W | yes | 1 | 
        
          | 1.36 mg/100 ml | Vinegar - Aged in wood - V5-W | yes | 1 | 
        
          | 0.00 mg/100 ml | Vinegar - Aged in wood - V6-W | yes | 1 | 
        
          | 0.00 mg/100 ml | Vinegar - Aged in wood - V7-W | yes | 1 | 
      
    
   
  
    Natera R., Castro R., Valme-Garcia-Moreno M.d., Hernandez M.J., Garcia-Barroso C. (2003) Chemometric studies of vinegars from different raw materials and processes of production. Journal of Agricultural and Food Chemistry 51:3345-3351 PubMed (12744665)  
    
      
        
        
        
        
      
       
      
        
          | Original Content Value | Original Food Description | Commercial Origin | # of Samples Analyzed | 
      
      
        
          | 0.74 mg/100 ml | Vinegar - From white wine - Without aging in wood | yes | 27 | 
        
          | 1.34 mg/100 ml | Vinegar - Balsamic - Aged in wood | yes | 6 | 
        
          | 1.53 mg/100 ml | Vinegar - Red wine - Aged in wood | yes | 2 | 
        
          | 1.01 mg/100 ml | Vinegar - Red wine - Without aging in wood | yes | 4 | 
        
          | 0.46 mg/100 ml | Vinegar - Honey | yes | 2 | 
        
          | 0.00 mg/100 ml | Vinegar - Alcohol | yes | 2 | 
        
          | 0.00 mg/100 ml | Vinegar - Malt | yes | 1 | 
        
          | 0.87 mg/100 ml | Vinegar - Apple | yes | 11 | 
        
          | 0.90 mg/100 ml | Vinegar - From white wine - Aged in wood | yes | 28 |